4 Data Exchange with the CPU Unit
4-10
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
Name of Device Variable for CJ-
series Unit
Type R/W Description Function
*_MstrOperateCmd BOOL RW Switch master
to OPERATE
mode
FALSETRUE:
Switches the Unit to the OPERATE mode. if
the Unit is already in this mode, no action will
be taken.
In OPERATE mode the PROFIBUS Master Unit
will parameterize all allocated slave devices,
and commence I/O Data-Exchange.
See Note 1 and 2.
FALSE:
If the PROFIBUS Master Unit has entered the
OPERATE mode, the Unit will change this bit to
FALSE again.
*_MstrStopCmd BOOL RW Switch master
to STOP mode
FALSETRUE:
Switches the Unit to the STOP mode. If the Unit
is already in this mode, no acction will be taken.
In STOP mode, the Unit will be online, con-
nected to the network, but not ccmmunicate
with its slave devices.
See Note 1 and 2.
FALSE:
If the PROFIBUS Master Unit has entered the
STOP mode, the Unit will change this bit to
FALSE again.
*_MstrClearCmd BOOL RW Switch master
to CLEAR
mode
FALSETRUE:
Switches the Unit to the CLEAR mode. If the
Unit is already in this mode, no action will be
taken. In CLEAR mode the PROFIBUS Master
Unit will parameterize all allocated slave
devices, and it will read the input data of the
slave devices, but it will send zeros or empty
output messages to slave devices.
See note 1 and 2.
FALSE:
If the PROFIBUS Master Unit has entered the
CLEAR mode, the Unit will change this bit to
FALSE again.
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