Yokogawa JUXTA VJ Series Limit Alarms Manual de usuario descargar pdf (Pagina 37)

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

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Yokogawa JUXTA VJ Series Limit Alarms Manual de usuario Pagina 37