	Battery
	Backup battery

● Backup current, typ. ● Backup current, max. ● Backup time, max. ● Feeding of external backup voltage to CPU		180 µA; up to 40 °C 850 µA Dealt with in the module data manual with the secondary conditions and the factors of influence 5 V DC to 15 V DC
CPU processing times
for bit operations, typ.		31.25 ns 31.25 ns 31.25 ns 62.5 ns
for word operations, typ.
for fixed point arithmetic, typ.
for floating point arithmetic, typ.
CPU-blocks
DB
● Number, max. ● Size, max.		3 000; Number range: 1 to 16000 64 kbyte
FB
● Number, max. ● Size, max.		1 500; Number range: 0 to 7999 64 kbyte
FC
● Number, max. ● Size, max.		1 500; Number range: 0 to 7999 64 kbyte
OB
● Number, max. ● Size, max. ● Number of free cycle OBs ● Number of time alarm OBs ● Number of delay alarm OBs ● Number of cyclic interrupt OBs ● Number of process alarm OBs ● Number of DPV1 alarm OBs ● Number of isochronous mode OBs ● Number of multicomputing OBs ● Number of background OBs ● Number of startup OBs ● Number of asynchronous error OBs ● Number of synchronous error OBs		see instruction list 64 kbyte 1; OB 1 2; OB 10, 11 2; OB 20, 21 2; OB 32, 35 (shortest cycle that can be set = 500 µs) 2; OB 40, 41 3; OB 55-57 2; OB 61-62 1; OB 60 1; OB 90 3; OB 100-102 9; OB 80-88 2; OB 121, 122
Nesting depth
● per priority class ● additional within an error OB		24 1
Counters, timers and their retentivity
S7 counter
● Number		2 048
Retentivity
— adjustable — lower limit — upper limit — preset		Yes 0 2 047 Z 0 to Z 7
Counting range
— lower limit — upper limit		0 999
IEC counter
● present ● Type ● Number		Yes SFB Unlimited (limited only by RAM capacity)
S7 times
● Number		2 048
Retentivity
— adjustable — lower limit — upper limit — preset		Yes 0 2 047 No times retentive
Time range
— lower limit — upper limit		10 ms 9 990 s
IEC timer
● present ● Type ● Number		Yes SFB Unlimited (limited only by RAM capacity)
Data areas and their retentivity
Retentive data area (incl. timers, counters, flags), max.		Total working and load memory (with backup battery)
Flag
● Size, max. ● Retentivity available ● Retentivity preset ● Number of clock memories		4 kbyte; Size of bit memory address area Yes MB 0 to MB 15 8; in 1 memory byte
Local data
● adjustable, max. ● preset		8 kbyte 4 kbyte
Address area
I/O address area
● Inputs ● Outputs		4 kbyte 4 kbyte
Process image
● Inputs, adjustable ● Outputs, adjustable ● Inputs, default ● Outputs, default ● consistent data, max. ● Access to consistent data in process image		4 kbyte 4 kbyte 128 byte 128 byte 244 byte Yes
Subprocess images
● Number of subprocess images, max.		15
Digital channels
● Inputs — of which central ● Outputs — of which central		32 768 32 768 32 768 32 768
Analog channels
● Inputs — of which central ● Outputs — of which central		2 048 2 048 2 048 2 048
Hardware configuration
Number of expansion units, max.		21 47 Yes; 4 CPUs max. (with UR1 or UR2)
connectable OPs
Multicomputing
Interface modules
● Number of connectable IMs (total), max. ● Number of connectable IM 460s, max. ● Number of connectable IM 463s, max.		6 6 4; IM 463-2
Number of DP masters
● integrated ● via CP ● via IM 467 ● Mixed mode IM + CP permitted ● via interface module ● Number of pluggable S5 modules (via adapter capsule in central device), max.		1 10; CP 443-5 Extended 4 No; IM 467 cannot be used jointly with CP 443-5 Ext. or CP 443-1 in PROFINET IO mode 0 6
Number of IO Controllers
● integrated ● via CP		0 4; Max. 4 in the central controller; no mixed operation of different CP 443-1 types in PROFINET IO mode
Number of operable FMs and CPs (recommended)
● FM ● CP, PtP ● PROFIBUS and Ethernet CPs			Limited by number of slots and number of connections CP 440: Limited by number of slots; CP 441: Limited by number of slots and number of connections 14; In total max. 10 CPs as DP master and PROFINET controller, of which up to 10 IMs or CPs as DP master and up to 4 CPs as PROFINET controller
	Slots
	● required slots		1
	Time of day
	Clock
	● Hardware clock (real-time) ● retentive and synchronizable ● Resolution ● Deviation per day (buffered), max. ● Deviation per day (unbuffered), max.		Yes Yes 1 ms 1.7 s; Power off 8.6 s; For power On
	Operating hours counter
	● Number ● Number/Number range ● Range of values ● Granularity ● retentive		16 0 to 15 SFCs 2, 3 and 4: 0 to 32767 hours SFC 101: 0 to 2^31 – 1 hours 1 h Yes
	Clock synchronization
	● supported ● to MPI, master ● to MPI, slave ● to DP, master ● to DP, slave ● in AS, master ● in AS, slave ● on Ethernet via NTP ● to IF 964 DP		Yes Yes Yes Yes Yes Yes Yes No; Via CP No
	Time difference in system when synchronizing via
	● MPI, max.		200 ms
	Interfaces
	Interfaces/bus type		1 x MPI/PROFIBUS DP 1; Combined MPI / PROFIBUS DP
	Number of RS 485 interfaces
	1. Interface
	Interface type		MPI/PROFIBUS DP Yes
	Isolated
	Interface types
	● RS 485 ● Output current of the interface, max.		Yes 150 mA
	Protocols
	● MPI ● PROFIBUS DP master ● PROFIBUS DP slave		Yes Yes Yes
	MPI
	● Number of connections ● Transmission rate, max.		32; If a diagnostics repeater is used on the line, the number of connection resources on the line is reduced by 1 12 Mbit/s
	Services
	— PG/OP communication — Routing — Global data communication — S7 basic communication — S7 communication — S7 communication, as client — S7 communication, as server		Yes Yes Yes Yes Yes Yes Yes
	PROFIBUS DP master
	● Number of connections, max. ● Transmission rate, max. ● Number of DP slaves, max.		16; If a diagnostics repeater is used on the line, the number of connection resources on the line is reduced by 1 12 Mbit/s 32
	Services
	— PG/OP communication		Yes
	— Routing		Yes; S7 routing
	— Global data communication		No
	— S7 basic communication		Yes
	— S7 communication		Yes
	— S7 communication, as client		Yes
	— S7 communication, as server		Yes
	— Equidistance		Yes
	— Isochronous mode		Yes
	— SYNC/FREEZE		Yes
	— Activation/deactivation of DP slaves		Yes
	— Direct data exchange (slave-to-slave communication)		Yes
	— DPV1		Yes
	Address area
	— Inputs, max. — Outputs, max.		2 kbyte 2 kbyte
	User data per DP slave
	— User data per DP slave, max.		244 byte
	— Inputs, max.		244 byte
	— Outputs, max.		244 byte
	— Slots, max.		244
	— per slot, max.		128 byte
	PROFIBUS DP slave
	● Number of connections		16
	● GSD file		http://support.automation.siemens.com/WW/view/en/113652
	● Transmission rate, max.		12 Mbit/s
	● automatic baud rate search		No
	● Address area, max.		32; Virtual slots
	● User data per address area, max.		32 byte
	— of which consistent, max.		32 byte
	Services
	— PG/OP communication		Yes; with interface active
	— Routing		Yes; with interface active
	— Global data communication		No
	— S7 basic communication		No
	— S7 communication		Yes
	— S7 communication, as client		Yes
	— S7 communication, as server		Yes
	— Direct data exchange (slave-to-slave communication)		No
	— DPV1		No
	Transfer memory
	— Inputs — Outputs		244 byte 244 byte
	Protocols
	Open IE communication
	● ISO-on-TCP (RFC1006) — Data length, max.		Via CP 443-1 Adv. and loadable FB 1 452 bytes via CP 443-1 Adv.
	Web server
	● supported		No
	Isochronous mode
	Equidistance		Yes
	Number of DP masters with isochronous mode		1
	User data per isochronous slave, max.		244 byte
	shortest clock pulse		1.5 ms; 0.5 ms without use of SFC 126, 127
	max. cycle		32 ms
	communication functions / header
	PG/OP communication ● Number of connectable OPs without message processing		Yes 47

● Number of connectable OPs with message processing		47; When using Alarm_S/SQ and Alarm_D/DQ
Data record routing		Yes
Global data communication
● supported		Yes
● Number of GD loops, max.		8
● Number of GD packets, transmitter, max.		8
● Number of GD packets, receiver, max.		16
● Size of GD packets, max.		54 byte
● Size of GD packet (of which consistent), max.		1 variable
S7 basic communication
● supported ● User data per job, max. ● User data per job (of which consistent), max.		Yes 76 byte 1 variable
S7 communication
● supported		Yes
● as server		Yes
● as client		Yes
● User data per job, max.		64 kbyte
● User data per job (of which consistent), max.		462 byte
S5 compatible communication
● supported		Yes; Via FC AG_SEND and AG_RECV, max. via 10 CP 443-1 or 443-5
● User data per job, max.		8 kbyte
● User data per job (of which consistent), max.		240 byte
● Number of simultaneous AG-SEND/AG-RECV orders per CPU, max.		24/24
Standard communication (FMS)
● supported		Yes; Via CP and loadable FB
Number of connections
● overall		48
● usable for PG communication		47
— reserved for PG communication		1
— adjustable for PG communication, max.		0
● usable for OP communication		47
— reserved for OP communication		1
— adjustable for OP communication, max.		0
● usable for S7 basic communication		46
— reserved for S7 basic communication		0
— adjustable for S7 basic communication, max.		0
● usable for S7 communication		46
— reserved for S7 communication		0
— adjustable for S7 communication, max.		0
● usable for routing		23
— reserved for routing		0
— adjustable for routing, max.		0
S7 message functions
Number of login stations for message functions, max.		47; Max. 47 with Alarm_S/SQ and Alarm_D/DQ (OPs); max. 8 with Alarm, Alarm_8, Alarm_8P, Notify and Notify_8 (e.g. WinCC)
Symbol-related messages		Yes
SCAN procedure		Yes
Program alarms		Yes
Process diagnostic messages		Yes
simultaneously active Alarm-S blocks, max.		250; Simultaneously active alarm_S/SQ blocks or alarm_D/DQ blocks
Alarm 8-blocks		Yes
● Number of instances for alarm 8 and S7 communication blocks, max.		300
● preset, max.		150
Process control messages		Yes
Number of archives that can log on simultaneously (SFB 37 AR_SEND)		4
Number of messages
● overall, max.		256
● in 100 ms grid, max.		0
● in 500 ms grid, max. ● in 1000 ms grid, max.		256 256
Number of additional values
● with 100 ms grid, max. ● with 500, 1000 ms grid, max.		0 1
Test commissioning functions
Status block		Yes; Up to 16 simultaneously Yes 16
Single step
Number of breakpoints
Status/control
● Status/control variable ● Variables ● Number of variables, max.		Yes; Up to 16 variable tables Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters 70; Status/control
Forcing
● Forcing ● Forcing, variables ● Number of variables, max.		Yes Inputs/outputs, bit memories, distributed I/Os 64
Diagnostic buffer
● present ● Number of entries, max. — adjustable — preset		Yes 3 200 Yes 120
Service data
● can be read out		Yes
Standards, approvals, certificates
CE mark		Yes Yes Yes Yes Yes Yes Yes Yes
CSA approval
UL approval
cULus
FM approval
RCM (formerly C-TICK)
KC approval
EAC (formerly Gost-R)
Use in hazardous areas
● ATEX		ATEX II 3G Ex nA IIC T4 Gc
Ambient conditions
Ambient temperature during operation
● min. ● max.		0 °C 60 °C
configuration / header
Configuration software
● STEP 7		Yes
configuration / programming / header
● Command set ● Nesting levels ● Access to consistent data in process image ● System functions (SFC) ● System function blocks (SFB)		see instruction list 7 Yes see instruction list see instruction list
Programming language
— LAD — FBD — STL — SCL — CFC — GRAPH — HiGraph®		Yes Yes Yes Yes Yes Yes Yes
configuration / programming / number of simultaneously active SFC / header
— number of simultaneously active system functions (SFC) / with DPSYC_FR — number of simultaneously active system functions (SFC) / with D_ACT_DP		2; SFC 11; per interface 8; SFC 12; per interface
— RD_REC — WR_REC — WR_PARM — PARM_MOD — WR_DPARM — DPNRM_DG — RDSYSST — DP_TOPOL		8; SFC 59; per interface 8; SFC 58; per interface 8; SFC 55; per interface 1; SFC 57; per interface 2; SFC 56; per interface 8; SFC 13; per interface 8; SFC 51 1; SFC 103; per interface
configuration / programming / number of simultaneously active SFB / header
— RDREC — WRREC		8; SFB 52; per interface, but not more than 32 across all external interfaces 8; SFB 53; per interface, but not more than 32 across all external interfaces
Know-how protection
● User program protection/password protection ● Block encryption		Yes Yes; With S7 block Privacy
Dimensions
Width		25 mm 290 mm 219 mm
Height
Depth
Weights
Weight, approx.		700 g

Dimensions	25 × 290 × 219 cm
Product type designation	CPU 412-1
Power loss, max	4 W
Type of memory	RAM
Backup / present	Yes; Guaranteed by MMC (maintenance-free)
HW functional status	01
Firmware version	V7.0
Isochronous mode	Yes; For PROFIBUS only
Programming package	STEP 7 V5.4 or higher with HSP 261
CiR - Configuration in RUN	CiR – Configuration in RUN CiR synchronization time, basic load 100 ms CiR synchronization time, time per I/O byte 30 µs
Input current	from backplane bus 5 V DC, typ. 0.7 A from backplane bus 5 V DC, max. 0.8 A from backplane bus 24 V DC, max. 150 mA; 150 mA per DP interface from interface 5 V DC, max. 90 mA; At the DP interface
Power loss, typ	3.5 W
Work memory	● integrated 512 kbyte ● integrated (for program) 256 kbyte ● integrated (for data) 256 kbyte ● expandable No
Load memory	● expandable FEPROM Yes; with Memory Card (FLASH) ● expandable FEPROM, max. 64 Mbyte ● integrated RAM, max. 512 kbyte ● expandable RAM Yes; with Memory Card (RAM) ● expandable RAM, max. 64 Mbyte
Backup / without battery	NO
Brand	SIEMENS

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SIEMENS

SIMENS-6ES7412-1XJ07-0AB0

SIMATIC S7-400, CPU 412-1 Central processing unit with: Work memory 512 KB,
(256 KB code, 256 KB data), interface MPI/DP 12 Mbit/s,

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Category: Automation & Instrumentation

Description

	Battery
	Backup battery

● Backup current, typ. ● Backup current, max. ● Backup time, max. ● Feeding of external backup voltage to CPU		180 µA; up to 40 °C 850 µA Dealt with in the module data manual with the secondary conditions and the factors of influence 5 V DC to 15 V DC
CPU processing times
for bit operations, typ.		31.25 ns 31.25 ns 31.25 ns 62.5 ns
for word operations, typ.
for fixed point arithmetic, typ.
for floating point arithmetic, typ.
CPU-blocks
DB
● Number, max. ● Size, max.		3 000; Number range: 1 to 16000 64 kbyte
FB
● Number, max. ● Size, max.		1 500; Number range: 0 to 7999 64 kbyte
FC
● Number, max. ● Size, max.		1 500; Number range: 0 to 7999 64 kbyte
OB
● Number, max. ● Size, max. ● Number of free cycle OBs ● Number of time alarm OBs ● Number of delay alarm OBs ● Number of cyclic interrupt OBs ● Number of process alarm OBs ● Number of DPV1 alarm OBs ● Number of isochronous mode OBs ● Number of multicomputing OBs ● Number of background OBs ● Number of startup OBs ● Number of asynchronous error OBs ● Number of synchronous error OBs		see instruction list 64 kbyte 1; OB 1 2; OB 10, 11 2; OB 20, 21 2; OB 32, 35 (shortest cycle that can be set = 500 µs) 2; OB 40, 41 3; OB 55-57 2; OB 61-62 1; OB 60 1; OB 90 3; OB 100-102 9; OB 80-88 2; OB 121, 122
Nesting depth
● per priority class ● additional within an error OB		24 1
Counters, timers and their retentivity
S7 counter
● Number		2 048
Retentivity
— adjustable — lower limit — upper limit — preset		Yes 0 2 047 Z 0 to Z 7
Counting range
— lower limit — upper limit		0 999
IEC counter
● present ● Type ● Number		Yes SFB Unlimited (limited only by RAM capacity)
S7 times
● Number		2 048
Retentivity
— adjustable — lower limit — upper limit — preset		Yes 0 2 047 No times retentive
Time range
— lower limit — upper limit		10 ms 9 990 s
IEC timer
● present ● Type ● Number		Yes SFB Unlimited (limited only by RAM capacity)
Data areas and their retentivity
Retentive data area (incl. timers, counters, flags), max.		Total working and load memory (with backup battery)
Flag
● Size, max. ● Retentivity available ● Retentivity preset ● Number of clock memories		4 kbyte; Size of bit memory address area Yes MB 0 to MB 15 8; in 1 memory byte
Local data
● adjustable, max. ● preset		8 kbyte 4 kbyte
Address area
I/O address area
● Inputs ● Outputs		4 kbyte 4 kbyte
Process image
● Inputs, adjustable ● Outputs, adjustable ● Inputs, default ● Outputs, default ● consistent data, max. ● Access to consistent data in process image		4 kbyte 4 kbyte 128 byte 128 byte 244 byte Yes
Subprocess images
● Number of subprocess images, max.		15
Digital channels
● Inputs — of which central ● Outputs — of which central		32 768 32 768 32 768 32 768
Analog channels
● Inputs — of which central ● Outputs — of which central		2 048 2 048 2 048 2 048
Hardware configuration
Number of expansion units, max.		21 47 Yes; 4 CPUs max. (with UR1 or UR2)
connectable OPs
Multicomputing
Interface modules
● Number of connectable IMs (total), max. ● Number of connectable IM 460s, max. ● Number of connectable IM 463s, max.		6 6 4; IM 463-2
Number of DP masters
● integrated ● via CP ● via IM 467 ● Mixed mode IM + CP permitted ● via interface module ● Number of pluggable S5 modules (via adapter capsule in central device), max.		1 10; CP 443-5 Extended 4 No; IM 467 cannot be used jointly with CP 443-5 Ext. or CP 443-1 in PROFINET IO mode 0 6
Number of IO Controllers
● integrated ● via CP		0 4; Max. 4 in the central controller; no mixed operation of different CP 443-1 types in PROFINET IO mode
Number of operable FMs and CPs (recommended)
● FM ● CP, PtP ● PROFIBUS and Ethernet CPs			Limited by number of slots and number of connections CP 440: Limited by number of slots; CP 441: Limited by number of slots and number of connections 14; In total max. 10 CPs as DP master and PROFINET controller, of which up to 10 IMs or CPs as DP master and up to 4 CPs as PROFINET controller
	Slots
	● required slots		1
	Time of day
	Clock
	● Hardware clock (real-time) ● retentive and synchronizable ● Resolution ● Deviation per day (buffered), max. ● Deviation per day (unbuffered), max.		Yes Yes 1 ms 1.7 s; Power off 8.6 s; For power On
	Operating hours counter
	● Number ● Number/Number range ● Range of values ● Granularity ● retentive		16 0 to 15 SFCs 2, 3 and 4: 0 to 32767 hours SFC 101: 0 to 2^31 – 1 hours 1 h Yes
	Clock synchronization
	● supported ● to MPI, master ● to MPI, slave ● to DP, master ● to DP, slave ● in AS, master ● in AS, slave ● on Ethernet via NTP ● to IF 964 DP		Yes Yes Yes Yes Yes Yes Yes No; Via CP No
	Time difference in system when synchronizing via
	● MPI, max.		200 ms
	Interfaces
	Interfaces/bus type		1 x MPI/PROFIBUS DP 1; Combined MPI / PROFIBUS DP
	Number of RS 485 interfaces
	1. Interface
	Interface type		MPI/PROFIBUS DP Yes
	Isolated
	Interface types
	● RS 485 ● Output current of the interface, max.		Yes 150 mA
	Protocols
	● MPI ● PROFIBUS DP master ● PROFIBUS DP slave		Yes Yes Yes
	MPI
	● Number of connections ● Transmission rate, max.		32; If a diagnostics repeater is used on the line, the number of connection resources on the line is reduced by 1 12 Mbit/s
	Services
	— PG/OP communication — Routing — Global data communication — S7 basic communication — S7 communication — S7 communication, as client — S7 communication, as server		Yes Yes Yes Yes Yes Yes Yes
	PROFIBUS DP master
	● Number of connections, max. ● Transmission rate, max. ● Number of DP slaves, max.		16; If a diagnostics repeater is used on the line, the number of connection resources on the line is reduced by 1 12 Mbit/s 32
	Services
	— PG/OP communication		Yes
	— Routing		Yes; S7 routing
	— Global data communication		No
	— S7 basic communication		Yes
	— S7 communication		Yes
	— S7 communication, as client		Yes
	— S7 communication, as server		Yes
	— Equidistance		Yes
	— Isochronous mode		Yes
	— SYNC/FREEZE		Yes
	— Activation/deactivation of DP slaves		Yes
	— Direct data exchange (slave-to-slave communication)		Yes
	— DPV1		Yes
	Address area
	— Inputs, max. — Outputs, max.		2 kbyte 2 kbyte
	User data per DP slave
	— User data per DP slave, max.		244 byte
	— Inputs, max.		244 byte
	— Outputs, max.		244 byte
	— Slots, max.		244
	— per slot, max.		128 byte
	PROFIBUS DP slave
	● Number of connections		16
	● GSD file		http://support.automation.siemens.com/WW/view/en/113652
	● Transmission rate, max.		12 Mbit/s
	● automatic baud rate search		No
	● Address area, max.		32; Virtual slots
	● User data per address area, max.		32 byte
	— of which consistent, max.		32 byte
	Services
	— PG/OP communication		Yes; with interface active
	— Routing		Yes; with interface active
	— Global data communication		No
	— S7 basic communication		No
	— S7 communication		Yes
	— S7 communication, as client		Yes
	— S7 communication, as server		Yes
	— Direct data exchange (slave-to-slave communication)		No
	— DPV1		No
	Transfer memory
	— Inputs — Outputs		244 byte 244 byte
	Protocols
	Open IE communication
	● ISO-on-TCP (RFC1006) — Data length, max.		Via CP 443-1 Adv. and loadable FB 1 452 bytes via CP 443-1 Adv.
	Web server
	● supported		No
	Isochronous mode
	Equidistance		Yes
	Number of DP masters with isochronous mode		1
	User data per isochronous slave, max.		244 byte
	shortest clock pulse		1.5 ms; 0.5 ms without use of SFC 126, 127
	max. cycle		32 ms
	communication functions / header
	PG/OP communication ● Number of connectable OPs without message processing		Yes 47

● Number of connectable OPs with message processing		47; When using Alarm_S/SQ and Alarm_D/DQ
Data record routing		Yes
Global data communication
● supported		Yes
● Number of GD loops, max.		8
● Number of GD packets, transmitter, max.		8
● Number of GD packets, receiver, max.		16
● Size of GD packets, max.		54 byte
● Size of GD packet (of which consistent), max.		1 variable
S7 basic communication
● supported ● User data per job, max. ● User data per job (of which consistent), max.		Yes 76 byte 1 variable
S7 communication
● supported		Yes
● as server		Yes
● as client		Yes
● User data per job, max.		64 kbyte
● User data per job (of which consistent), max.		462 byte
S5 compatible communication
● supported		Yes; Via FC AG_SEND and AG_RECV, max. via 10 CP 443-1 or 443-5
● User data per job, max.		8 kbyte
● User data per job (of which consistent), max.		240 byte
● Number of simultaneous AG-SEND/AG-RECV orders per CPU, max.		24/24
Standard communication (FMS)
● supported		Yes; Via CP and loadable FB
Number of connections
● overall		48
● usable for PG communication		47
— reserved for PG communication		1
— adjustable for PG communication, max.		0
● usable for OP communication		47
— reserved for OP communication		1
— adjustable for OP communication, max.		0
● usable for S7 basic communication		46
— reserved for S7 basic communication		0
— adjustable for S7 basic communication, max.		0
● usable for S7 communication		46
— reserved for S7 communication		0
— adjustable for S7 communication, max.		0
● usable for routing		23
— reserved for routing		0
— adjustable for routing, max.		0
S7 message functions
Number of login stations for message functions, max.		47; Max. 47 with Alarm_S/SQ and Alarm_D/DQ (OPs); max. 8 with Alarm, Alarm_8, Alarm_8P, Notify and Notify_8 (e.g. WinCC)
Symbol-related messages		Yes
SCAN procedure		Yes
Program alarms		Yes
Process diagnostic messages		Yes
simultaneously active Alarm-S blocks, max.		250; Simultaneously active alarm_S/SQ blocks or alarm_D/DQ blocks
Alarm 8-blocks		Yes
● Number of instances for alarm 8 and S7 communication blocks, max.		300
● preset, max.		150
Process control messages		Yes
Number of archives that can log on simultaneously (SFB 37 AR_SEND)		4
Number of messages
● overall, max.		256
● in 100 ms grid, max.		0
● in 500 ms grid, max. ● in 1000 ms grid, max.		256 256
Number of additional values
● with 100 ms grid, max. ● with 500, 1000 ms grid, max.		0 1
Test commissioning functions
Status block		Yes; Up to 16 simultaneously Yes 16
Single step
Number of breakpoints
Status/control
● Status/control variable ● Variables ● Number of variables, max.		Yes; Up to 16 variable tables Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters 70; Status/control
Forcing
● Forcing ● Forcing, variables ● Number of variables, max.		Yes Inputs/outputs, bit memories, distributed I/Os 64
Diagnostic buffer
● present ● Number of entries, max. — adjustable — preset		Yes 3 200 Yes 120
Service data
● can be read out		Yes
Standards, approvals, certificates
CE mark		Yes Yes Yes Yes Yes Yes Yes Yes
CSA approval
UL approval
cULus
FM approval
RCM (formerly C-TICK)
KC approval
EAC (formerly Gost-R)
Use in hazardous areas
● ATEX		ATEX II 3G Ex nA IIC T4 Gc
Ambient conditions
Ambient temperature during operation
● min. ● max.		0 °C 60 °C
configuration / header
Configuration software
● STEP 7		Yes
configuration / programming / header
● Command set ● Nesting levels ● Access to consistent data in process image ● System functions (SFC) ● System function blocks (SFB)		see instruction list 7 Yes see instruction list see instruction list
Programming language
— LAD — FBD — STL — SCL — CFC — GRAPH — HiGraph®		Yes Yes Yes Yes Yes Yes Yes
configuration / programming / number of simultaneously active SFC / header
— number of simultaneously active system functions (SFC) / with DPSYC_FR — number of simultaneously active system functions (SFC) / with D_ACT_DP		2; SFC 11; per interface 8; SFC 12; per interface
— RD_REC — WR_REC — WR_PARM — PARM_MOD — WR_DPARM — DPNRM_DG — RDSYSST — DP_TOPOL		8; SFC 59; per interface 8; SFC 58; per interface 8; SFC 55; per interface 1; SFC 57; per interface 2; SFC 56; per interface 8; SFC 13; per interface 8; SFC 51 1; SFC 103; per interface
configuration / programming / number of simultaneously active SFB / header
— RDREC — WRREC		8; SFB 52; per interface, but not more than 32 across all external interfaces 8; SFB 53; per interface, but not more than 32 across all external interfaces
Know-how protection
● User program protection/password protection ● Block encryption		Yes Yes; With S7 block Privacy
Dimensions
Width		25 mm 290 mm 219 mm
Height
Depth
Weights
Weight, approx.		700 g

Additional information

Dimensions	25 × 290 × 219 cm
Product type designation	CPU 412-1
Power loss, max	4 W
Type of memory	RAM
Backup / present	Yes; Guaranteed by MMC (maintenance-free)
HW functional status	01
Firmware version	V7.0
Isochronous mode	Yes; For PROFIBUS only
Programming package	STEP 7 V5.4 or higher with HSP 261
CiR - Configuration in RUN	CiR – Configuration in RUN CiR synchronization time, basic load 100 ms CiR synchronization time, time per I/O byte 30 µs
Input current	from backplane bus 5 V DC, typ. 0.7 A from backplane bus 5 V DC, max. 0.8 A from backplane bus 24 V DC, max. 150 mA; 150 mA per DP interface from interface 5 V DC, max. 90 mA; At the DP interface
Power loss, typ	3.5 W
Work memory	● integrated 512 kbyte ● integrated (for program) 256 kbyte ● integrated (for data) 256 kbyte ● expandable No
Load memory	● expandable FEPROM Yes; with Memory Card (FLASH) ● expandable FEPROM, max. 64 Mbyte ● integrated RAM, max. 512 kbyte ● expandable RAM Yes; with Memory Card (RAM) ● expandable RAM, max. 64 Mbyte
Backup / without battery	NO
Brand	SIEMENS

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