Yokogawa JUXTA VJ Series Limit Alarms - Manual (Page 37)

<4. Ladder Communication >
4-1
IM 77J01J11-01E
4. Ladder Communication
4.1 Overview
Communication with a sequencer (PLC) is achieved using a ladder program. Speci-
fying the register numbers of D registers of the VJ Series signal conditioners in the
ladder program allows the registers to be read using the BCD codes (0 to 9).
Ladder communication module
FA-M3
Maximum overall cable length of 1200 m
for a maximum of 31 substations
040101E.EPS
Figure 4-1 Example of Connection for Ladder Communication
●
Connecting the VJ Series to a PLC of another company
When the VJ Series signal conditioners are connected to a PLC manufactured by
Mitsubishi Electric (MELSEC-A series), you can use the no-handshaking mode of the
computer link unit.
3rd Edition : Oct. 15, 2007-00