GW-7553-CPM PROFIBUS/CANopen GATEWAY User Manual
(Version 1.00, Apr/2016)
PAGE: 25
Table 11 Output data area
Module
Byte
Bit Position
Description
7
6
5
4
3
2
1
0
System
setting
module
0
Data output command
1
- - - - - - - DC Control bit
2
Output module select
3~9
reserved
Output
module
10~239
Output data
●
Data output command(byte 0)
When this byte is changed, PROFIBUS master device will send data of
output module to RxPDO(non-cyclic) data of GW-7553-CPM.
PS: When the user use this byte to trigger
“
data output command
”
, the
user must increase this byte in order (ex: 0->1, 1->2,
…
, 255->0) or else
the GW-7553-CPM will send a diagnostic message to the PROFIBUS
master.
●
Control bit(byte 1)
DC(bit 0)
：
When this bit is set (DC=1), diagnostic messages send by the
GW-7553-CPM module will all be cleared.
Bit 1~7
：
The remaining bits have to be set to zero.
●
Output module select(byte 2)
When this byte isn
’
t
‘
0
’
and the user change data output command(byte
0), it will trigger single data output command of the output module and
this byte
represent module address of the output module (ex:
“
byte 2
”
=3, it
represent that the user want to trigger data output command of the third
module )
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