Siemens Simatic S7-400 User Manual

Communication
4.2 Communication services
S7-400 Automation System, CPU Specifications
4-12 Manual, 10/2006, 6ES7498-8AA04-8BA0
GD resources of the CPUs
Table 4-5 GD resources of the CPUs
Parameters CPU 414-3 PN/DP CPU 416-3 PN/DP
Number of GD circuits per CPU Max. 8 Max. 16
GD packets transmitted by all GD circuits Max. 8 Max. 16
GD packets received by all GD circuits Max. 16 Max. 32
Data length per GD packet Max. 54 bytes Max. 54 bytes
Consistency 1 variable 1 variable

Siemens Simatic S7-400 Specifications

General

Programming Language	STEP 7 (LAD, FBD, STL, SCL, GRAPH)
Communication Interfaces	MPI, PROFIBUS
Power Supply	24 V DC, 120/230 V AC (Power supply modules are separate and chosen based on system requirements)
Operating Temperature	0°C to 60°C
Mounting	Rack mounting
Processor	CPU 412-1, CPU 414-2, CPU 416-2, CPU 417-4 (Different CPUs offer varying performance and features)
Relative Humidity	5 to 95% (non-condensing)