Example: Configuring As-Interface Process Data And Mailbox - WAGO -I/O-SYSTEM 750 Series Manual

42 • 750-655 [AS-Interface master module]
Data channel for parameter exchange
2.1.1.9.4.5

Example: Configuring AS-Interface process data and mailbox

Request (Application)
Parameter
TGL_MS
PRM_RW
MORE_PRM = FALSE
A0 ... A7
PRM0 ...
PRM7
PRM8 ...
PRM14
PRM15
Response (Bus module)
Parameter
TGL_SM
A0 ... A7
TIMEOUT
BUF_OFL
PRM_ERR
Value Meaning
!= TGL_SM Initiate order
= TRUE Write access
The transmission of the parameter data is terminated with
the currently transmitted parameter.
0 Address of parameter data
ASI_DATA_ AS-Interface data length in bytes
LEN
MBX_LEN Mailbox length in bytes
MBX_MODE FALSE
TRUE
Value Meaning
== TGL_MS Order executed
0 Address of parameter data mirrored
FALSE, TRUE Monitoring time expired
FALSE, TRUE Access outside the module parameter range
FALSE, TRUE Parameter/parameter set error
No superimposition of mailbox and AS-
Interface process data
Mailbox can be superimposed on the AS-
Interface process data (by setting bit 2
control byte)
WAGO-I/O-SYSTEM 750
5
in the
I/O Modules