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Fiber Amplifier Communications Units
Section 5-6
Note
Fiber Amplifier Units that use two unit numbers (E3X-DA6TW, E3X-DA8TW)
must be counted as two Units when counting the number of Sensors.
Communications Mode Setting (Pin 2)
This pin is used to switch the CompoBus/S communications mode
Note
The Slave communications mode setting must match the communications
mode setting of the Master Unit. If the communications modes are different,
the Master Unit will not communicate properly. Check the operating status of
the Slaves using the indicators.
I/O Allocations
Pin 1 OFF (Up to 6 Sensors)
Up to 6 Sensors can be connected in this mode. The data is 8 bits and is
stored in the IN Area, which is set as the node number area
Sensor Communications Error Flag
Bit 06 turns ON when the registered number of Sensors does not match the
number of Sensors that are enabled to communicate, or when a communica-
tions error occurs after communications have been established with the Sen-
sors.
Sensor Communications Flag
Bit 07 turns ON when communications are established with the Sensors.
Pin 1 ON (Up to 14 Sensors)
Up to 14 Sensors can be connected in this mode. The data allocated is 16 bits
and is stored in the IN Area, as shown in the following table.
Pin 2 (DR)
Communications mode setting
OFF
High-speed Communications Mode
ON
Long-distance Communications Mode
Bit
Contents
00
Unit 1 ON/OFF data
01
Unit 2 ON/OFF data
02
Unit 3 ON/OFF data
03
Unit 4 ON/OFF data
04
Unit 5 ON/OFF data
05
Unit 6 ON/OFF data
06
Sensor Communications Error Flag
07
Sensor Communications Flag
Node number
Node numbers actually used
Odd number
Node number setting
−
1 to node number setting
Even number
Node number setting to node number s 1