Technical data

Manual – MOVI-PLC® advanced DH.41B Controller

Special cases

Operating Characteristics on PROFIBUS-DP

Incorrect service

code in the param-

eter channel

An incorrect code was specified for the management byte or reserved byte during

parameter setting via the parameter channel. The following table shows the return code

for this special case.

Troubleshooting:

Check bits 0 and 1 in the parameter channel.

Incorrect length

specification in

parameter channel

A data length other than 4 data bytes was specified in a read or write service during

parameter setting via the parameter channel. The following table displays the return

codes.

Troubleshooting:

Check bit 4 and bit 5 for the data length in management byte 0 of the parameter channel.

Both bits must be set to "1".

Internal communi-

cation error

The return code listed in the following table is sent back if an internal communication

error has occurred. The parameter service transferred via the fieldbus may not have

been performed and should be repeated. If this error persists, switch the MOVI-PLC

advanced DHF41B control card off and on again. In this way, the control card is

reinitialized.

Troubleshooting:

Repeat the read or write service. If this error occurs again, disconnect the MOVI-PLC

advanced DHF41B control card from the power source and switch the system on again.

If the error persists, consult SEW Service.

Code (dec) Meaning

Error class: 5 Service

Error code: 5 Illegal parameter

Add. code high: 0 -

Add. code low: 0 -

Code (dec) Meaning

Error class: 6 Access

Error code: 8 Type conflict

Add. code high: 0 -

Add. code low: 0 -

Code (dec) Meaning

Error class: 6 Access

Error code: 2 Hardware fault

Add. code high: 0 -

Add. code low: 0 -