GLC2400/2500/2600 Series User Manual
1–15
Chapter 1 – Introduction
1.4.5 Flex Network Communication I/F
The following information explains how to connect the GLC to a Flex Network
Communication I/F and I/O Unit.
When connecting the I/O unit, 2 lines are available - CH1 and CH2. Each channel
outputs the same data and either can be used for data transmission.
The maximum number of connectable units, when using a single channel, is 31,
and when using a second channel, the number increases by 32 to a total of 63.
The Flex Network uses high-speed data-transfer technology, and if a
cable that is not recommended in this document is used for data trans-
fer, network data-transfer performance cannot be guaranteed. There-
fore, use only the cable(s) recommended here.
Flex Network User Manual (sold separately)
6 Mbps is the recommended speed.
Standard System Design
1.
Be sure the Terminal Switch (TERM) of the network’s last unit (at each end) is
turned ON.
Flex Network User Manual (sold separately)
16 Input Points
GLC
8 points –
relay output
Sensor
Operation
Switch
DC 24V
8 points Input /
8 points Output
16 Input points
Valve
Actuator Lamp
DC 24V
DC 24V
to next station
*1
to next station
*1
Sensor
Operation
Switch
Sensor
Operation
Switch
DC 24V