ET 200S in the PROFIBUS Network
3-3
ET 200S Interface Module IM 151/CPU
A5E00058783-01
Access to the ET 200S
The IM 151/CPU is a passive bus node. The programs and configuration of the
IM 151/CPU can be transferred to the IM151/CPU by choosing ”Load PLC” from
the programming device in SIMATIC Manager. All the other diagnostic and test
functions are also possible with the programming device.
If the programming device is currently the only active bus node, this must be set
beforehand in SIMATIC Manager by choosing the ”Setting the PG/PC Interface”
menu command (see Section 3.4).
However, you can still install OPs/OSs (operator panels/operator stations) as fixed
components of the PROFIBUS network for operating and monitoring functions.
You cannot access an ET 200S from more than five devices in parallel:
1 connection is reserved for the programming device.
1 connection is reserved for an operator panel or an operator station.
3 connections are available as desired for programming devices, operator
panels/operator stations and CPUs
We recommend that you allocate a PROFIBUS address to the programming
device/operator panel in the same way as for other network nodes (see
Figure 3-1).
Maximum Data Transfer Rate with a Programming Device Connecting Cable
You can obtain a maximum data transfer rate of 1.5 Mbps using the programming
device connecting cable.
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