Connecting A Programming Device (Pg) To An S7-400; Connecting Pg To An S7-400; Setting The Battery Monitoring Switch - Siemens SIMATIC S7-400 Installation Manual

According to the backup concept, Table 6-2 shows how you must set the battery
monitoring switch on the different power supply modules.
Table 6-2
do not use battery monitoring,
use battery monitoring with a single-width
power supply module,
want to monitor a backup battery with a
double or triple-width power supply module,
want to monitor two backup batteries with a
double or triple-width power supply module,
6.3

Connecting a Programming Device (PG) to an S7-400

Connecting a Programming Device (PG) to an S7-400
You must connect the programming device via a connecting cable to the MPI of the
CPU. This allows access via the communication bus to all CPUs and
programmable modules.
Figure 6-1 Connecting PG to an S7-400
Automation System S7-400 Hardware and Installation
A5E00850741-01

Setting the Battery Monitoring Switch

If You ...
S7-400
PG cable
...Then
set the BATT INDIC switch to OFF.
set the BATT INDIC switch to BATT.
set the BATT INDIC switch to 1BATT.
set the BATT INDIC switch to 2BATT.
Programming device
Commissioning
6-5