Siemens SIMATIC S5 CP 523 Manual page 164

CP 523
Illegal job requests in Communications mode
If you write a job request into word 0 of the transfer memory other than one of those listed above,
the CP flags "Illegal job request" error 4X
The "Print all message texts" request 8000
Communications mode. Error 4X
You also receive this error flag if you transfer illegal parameter setting data with the "Transfer
parameter setting data" request. In all cases (except A0XX
wait 30 ms after initiating a job request before reading out the status byte.
Note:
In all cases (except A0XX
request before reading out the status byte.
Note:
• The "Transfer parameter setting data" requests (job number 90
section 7.3. These job requests are used to set the CP 523 parameters.
• The "Set clock" request is identical in Communications mode and Print mode ( 6.7.2).
EWA 4NEB 811 6044-02a
in the status byte.
H
, for example, is permissible in Print mode but not in
H
would be flagged in the status byte in Communications mode.
H
"Coordinate data transfer") you must wait 30 ms after initiating a job
H
Communications Mode
"Coordinate data transfer") you must
H
) are explained in
H
7-59