Mitsubishi Electric GOT1000 Series Connection Manual page 47

POINT POINT POINT
Cautions for using GT15-QBUS2 and GT15-ABUS2
The stage number of communication units installed on the next stage of GT15-QBUS2 or GT15-ABUS2 are
recognized by the GOT differently depending on the extension interface position.
For communication units installed in the extension interface 2 side, even if the communication unit is physically
installed in the 2nd stage position, the GOT recognizes the position as the 1st stage.
Recognized as the
3rd stage of extend
interface 1
Recognized as the
2nd stage of extend
interface 1
Recognized as the 1st stage
of extend interface 1
(2) Standard size bus connection unit (GT15-QBUS and GT15-ABUS)
A bus connection unit can be installed in any position (1st to 3rd stage) of the extension interface.
Example: Installing a bus connection unit and serial communication units
Serial communication unit
Bus connection unit
1. PREPARATORY PROCEDURES FOR MONITORING
1.3 Option Devices for the Respective Connection
Recognized as the 2nd stage
of extend interface 2
Recognized as the 1st stage
of extend interface 2
GT15-QBUS2, GT15-ABUS2
Relay connector
Bus connection unit
Serial communication unit
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