Yokogawa JUXTA VJ Series Limit Alarms - Manual (Page 15)

<3. PC Link Communication >
3-1
IM 77J01J11-01E
3. PC Link Communication
3.1 Overview
The use of PC link communication enables the VJ Series to communicate with a
device such as a PC, graphic panel, or FA-M3's UT link module. Such a device can
be used in communication to read data from D registers or I relays, both of which are
internal registers of the VJ Series signal conditioners.
Maximum overall cable length of 1200 m
for a maximum of 31 substations
PC
030101E.EPS
Figure 3-1 Connection of Substations in PC Link Communication
Hereafter, PCs are generally called "higher-level devices."
See Also
Chapters 6 and 7 for information on the D registers and I relays.
In PC link communication, a higher-level device identifies each VJ Series signal conditioner
with a communication address of 1 to 99.
3rd Edition : Oct. 15, 2007-00