PROFIBUS MODULE (CB15/CB155)
English
Operating Instructions
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5.2 Settings on the PROFIBUS-DP Master
Use the device master file for configuring the PROFIBUS-DP system or use the type description file with suitable
configuring software for the PROFIBUS-DP master (e.g. COM ET 200 V4.x). Both files are included on the floppy
disc supplied with the CB15/CB155. The device master file (
SIEM8046.GSD
) and the description file (
SI8046AX.200,
SI8046TD.200
) are ASCII files.
5.2.1 Setting the PPO Type from the Master
Identification bytes are transmitted in the configuration frame of the PROFIBUS-DP master. These bytes define the
PPO type of the user data frame. This is possible, for example, on the SIMATIC S5 with the IM308B/C PROFIBUS-
DP module.
The CB15/CB155 only recognises PPO types 1 and 3. When the CB15/CB155 receives an unknown identification
byte combination, it enables the ‘configuration error’ bit in the diagnostics frame to the PROFIBUS-DP master.
PPO
Identification byte 0
Identification byte 1
COM ET 200
Type
Dec
Hex
COM
Dec
Hex
COM
Version
1
243
F3
4AX
241
F1
2AX
V4.x/V5.x
3
0
0
0
241
F1
2AX
V4.x/V5.x
3
241
F1
2AX
0
0
0
V4.x/V5.x
3
241
F1
2AX
V4.x/V5.x
Value Table for the Identification Bytes
Identification bytes 0 and 1 in decimal (dec) and hexadecimal (hex) notation apply generally for PROFIBUS-DP.
The notation (COM) for the COM ET 200 configuring software is specific to this software. The COM ET 200
configuring software is exclusively for the IM308B/C PROFIBUS-DP master module of the SIMATIC S5 system.
5.2.2 Setting the PPO Type on the CB15/CB155
On PROFIBUS-DP master systems where it is not possible to specify the PPO type in the identification bytes for
the inverter (e.g. CP5431 for SIMATIC S5), the valid PPO type is PPO type 1.
5.3 Initial Communication with the CB15/CB155
The following operations must be performed in order to establish correct communication between the CB15/CB155
and the PROFIBUS master:
_
The bus cable must be connected correctly between the 2 devices.
_
The PROFIBUS master must be configured correctly to allow communication with a DP Slave using PPO type
1 or PPO type 3 (only PPO type 1 if the PPO type cannot be configured remotely).
_
The correct Type Description File must have been used in the case of COM ET 200 software for configuring an
IM308B/C as bus master.
_
The bus must be running (the switch on the front panel set to RUN in the case of a SIMATIC module).
_
The bus baud rate must not exceed 12 MBd.
_
The inverter must be switched on.
_
The slave address for the CB15/CB155 (parameter P918) must be set to match the slave address configured
at the PROFIBUS master and must be unique on the bus.
_
All necessary EMC precautions
(described in section 2)
must have been taken.
