SIEMENS
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Siemens IK PI · 2015
PROFIBUS
Communication for SIMATIC S7-1500
CP 1542-5
3
■
Overview
The CP 1542-5 communications processor expands the
SIMATIC S7-1500 controller with an additional PROFIBUS
connection for communication with lower-level PROFIBUS
devices in bandwidths from 9.6 kbps to 12 Mbit/s. The processor
also allows the implementation of separate PROFIBUS lines; in
other words, the control of multiple field devices via several
PROFIBUS segments. The CP 1542-5 handles all communi-
cation tasks, thus reducing the CPU load.
•
PROFIBUS DP master or DP slave with electrical interface for
connecting the SIMATIC S7-1500 to PROFIBUS at up to
12 Mbit/s (including 45.45 Kbit/s)
Communication services:
•
PROFIBUS DP
•
PG/OP communication
•
Time synchronization
•
Simple programming and configuration over PROFIBUS
•
Cross-network PG communication using S7 routing
•
Module replacement without a PG
■
Benefits
•
Particularly suitable for closed-loop control tasks thanks to
SYNC/FREEZE and constant bus cycle
•
Sub-process-oriented design of an automation solution
through the use of several CPs
•
Universal application of the CP due to the parallel use of
different communication services on one CP
PROFIBUS DP configuration for SIMATIC S5/S7 and PG/PC
■
Application
The CP 1542-5 is the communications processor of the
SIMATIC S7-1500 for the PROFIBUS bus system. It relieves
the CPU from communications tasks.
Communications options of the S7-1500 using communication
modules:
•
As master for PROFIBUS DP according to IEC 61158/
EN 50170 (max. 32 DP slaves)
•
Communication with programming devices and HMI devices
The number of CPs that can be operated depends on the CPU
type and on the communication services used.
■
Design
The communications processor CP 1542-5 features all the
advantages of the SIMATIC S7-1500 design:
•
Compact design:
- 9-pin D-sub socket for connection to PROFIBUS DP
- The module is supplied with power via the integrated
backplane bus
- Three LEDs to indicate the operational and communication
status
•
Simple installation:
The CP 1542-5 is mounted on the rail of the S7-1500 and
connected to the other modules of the S7-1500 by means of
the bus connectors. The slot rules of the S7-1500 system
apply.
•
User-friendly wiring:
the D-sub socket is easily accessible and simple to use.
•
The CP 1542-5 can be operated without a fan. A backup
battery is not required.
•
The module can be replaced without the need for a
programming device.
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S7-400 with
CP 443-5 Extended
(DP master)
S7-300 with CP 342-5
(DP master)
PC with CP 5613 A3/
CP 5623
and DP Base
(DP master)
PG with STEP 7
and CP 5711
Third-party device
SIMATIC S7-1200
with CM 1242-5
SIMATIC S7-1200
with CM 1243-5
S7-1500 with
CM 1542-5
S7-1500
with CP 1542-5
G_IK10_XX_50007
ET 200S
PROFIBUS DP
© Siemens AG 2014