Siemens S5-100U - Connecting the Programmable Controller to the L1 Bus Cable; Setting Parameters in the Programmable Controller for Exchanging Data

S5-100U Connecting the S5-100U to SINEC L1
13 Connecting the S5-100U to SINEC L1,
for CPU 102 and Higher
SINEC L1 is a local area network that enables SIMATIC S5 programmable controllers to communi-
cate with each other. This option is available when you are using CPU 102 or higher. It operates
on the master-slave principle.
You will find more exact information on the SINEC L1 in the
SINEC L1 manual. You need to
understand the SINEC L1 operating system before continuing with this chapter.
The S5-100U can be connected directly to the SINEC L1 as a slave. The information you need to
perform this operation is explained in this chapter.
13.1 Connecting the Programmable Controller to the L1 Bus Cable
Bus terminal BT 777 is the signal level converter that connects the programmable controller to the
L1 bus cable. The procedure is as follows:
1. Connect the L1 bus cable to bus terminal BT 777.
2. Insert the connector of the bus terminal cable into the PG/OP/SINEC L1 port.
Figure 13-1. Connection of the Bus Cable
0B
1B
2B
3B
4B
0B
1B
2B
3B
4B
0B
1B
2B
3B
4B
0A
1A
2A
3A
4A
0A
1A
2A
3A
4A
0A
1A
2A
3A
4A
13.2 Setting Parameters in the Programmable Controller for Exchanging
Data
The programmable controller requires the following information for the handling of data exchange via
the L1 bus:
• Location of the data to be sent (data block or flag area)
Name: Send Mailbox, abbreviated: SF
• Location of the data to be received (data block or flag area)
Name: Receive Mailbox, abbreviated: EF
EWA 4NEB 812 6120-02 13-1