Siemens Simatic S7-300 CPU 31xC Series User Manual

Commissioning
8.5 Commissioning PROFIBUS DP
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05
8-23
8.5 Commissioning PROFIBUS DP
8.5.1 Commissioning PROFIBUS DP
Requirements
Requirements for commissioning a PROFIBUS DP network:
• A PROFIBUS DP network is installed.
• In STEP 7, you configured the PROFIBUS DP network and assigned all network nodes a
PROFIBUS DP address and memory area (see the Manual
SIMATIC, STEP 7 V5.x;
Configuring hardware and connections with STEP 7 V5.x
).
• Note that you must also set address switches at some of the DP slaves (see the
description of the relevant DP slave).
• Software requirements are shown in the table below, based on the CPU used:
Table 8-6 Software requirements
CPU Order number Software required
313C-2 DP 6ES/313-6CE00-0AB0
314C-2 DP 6ES7314-6CF00-0AB0
STEP 7 V 5.1 + SP 4 or higher
COM PROFIBUS V 5.0 or higher
315-2 DP 6ES7315-2AG10-0AB0 STEP 7 V 5.1 + SP 4 or higher
315-2 PN/DP 6ES7315-2EG10-0AB0 STEP 7 V 5.3 or higher
317-2 DP 6ES7317-2AJ10-0AB0 STEP 7 V 5.2 + SP 1 or higher
317-2 PN/DP 6ES7317-2EJ10-0AB0 STEP 7 V 5.3 or higher
DP address areas of the CPUs
Table 8-7 DP address areas of the CPUs
Address area 313C-2 DP, 314C-2 DP 315-2 DP
315-2 PN/DP
317-2 DP
317-2 PN/DP
DP address area
for I/Os
1024 bytes 2048 bytes 8192 bytes
Number of those in process
image for I/Os
Byte 0 to 127 Byte 0 to 127 Bytes 0 to 255
1
1
At a CPU 317-2 PN/DP with FW version 2.3.0 or higher, you can set a maximum number of 2047
bytes for the process image. Default setting of the CPU is byte 0 to 255.

Siemens Simatic S7-300 CPU 31xC Series Specifications

General

Series	S7-300 CPU 31xC
Power Supply	24 V DC
Communication Interfaces	MPI, PROFIBUS DP
Programming Languages	LAD, STL, FBD, SCL
Operating Temperature	0°C to +60°C
Memory	48 KB - 512 KB
Dimensions	40 x 125 x 130 mm (varies by model)