Yokogawa JUXTA M Series Digital Limit Alarms MVTK - Manual (Page 15)

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3-1
IM 77J04J11-01E 1st Edition : 2006.08.25-00
3. PC Link Communication
3.1 Overview
The use of PC link communication enables the M Series to communicate with a
device such as a PC, graphic panel and FA-M3 UT link module easily. In this commu-
nication, you can use such device to read/write data from/into D registers or I relays,
both of which are internal registers of the M Series.
PC
A maximum of 1200 m; up to 31 slave stations
Figure 3-1 Example of Connection for PC Link Communication
Hereafter, PCs etc. are generically 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 M Series with an address
number, which ranges from 01 to 99.