Recommended Commissioning Procedure - Part I: Hardware - Siemens SIMATIC S7-300 Hardware And Installation Manual

Commissioning
Recommended procedure - Part I: Hardware
With its modular structure and many different upgrade options, the S7-300 can be
very large and extremely complex. It is therefore inappropriate to initially start up an
S7-300 with multiple racks and all inserted (installed) modules. Rather, we
recommend a step-by-step commissioning procedure.
We recommend the following initial commissioning procedure for an S7-300:
Table 9-1

Recommended commissioning procedure - part I: Hardware

Tasks
an installation and wiring
check according to
checklist
Disabling connections to
drive aggregates and
control elements
Preparing the CPU
Central unit (CU):
commission the CPU
and power supply, check
the LEDs
Initialize the CPU and
check the LEDs
CU:
commission all other
modules
Expansion module (EM):
Connecting
EM:
Commissioning
9-2
Remarks
-
This prevents negative effects on your system as
a result of program errors.
Tip: Redirecting output data from your outputs to
a data block, allows you to check the status of the
outputs at any time
Connecting the PG
Commission the CU with inserted power supply
module and CPU.
First, switch on the expansion modules (EMs)
which are equipped with an auxiliary power
supply module and then switch on the power
supply module of the CD.
Check the LED displays on both modules.
-
Insert further modules into the CU and
commission them in succession.
If required, interconnect the CU and the EMs:
Insert only one Send IM into the CU and the
matching receiver IM into the EM.
Insert further modules into the EMs and
commission them in succession.
Information can be
found in ...
in the following Chapter
-
in the Chapter Connecting
the PG
in Chapter Initial Power
On
in Chapter Testing
Functions, Diagnostics
and Fault Elimination
in Chapter Resetting CPU
memory
Module Data Reference
Manual
Chapter Mounting
See above.
S7-300 Programmable Controller Hardware and Installation
A5E00105492-02