Communication Connector; Led Specification - Hitachi HIDIC EH-150 Applications Manual

7.7

Communication Connector

Table 7.5 Communication connector terminal arrangement
Terminal layout
1 2 3 4 5
7.8

LED Specification

(1) MS/NS
NS
MS
Lit in Green
Flashing in Red
Lit in Red
Turned off
No. Display status
MS lit in green
1
NS lit in green
MS lit in green
2
NS flashing in
green
MS lit in green
3
NS turned off
MS lit in green
4
NS lit in red
MS lit in green
5
NS flashing in red
MS flashing in red
6
NS turned off
MS lit in red
7
NS turned off
MS turned off
8
NS turned off
Number Signal
5 V+
4 CAN_H
3 Drain
2 CAN_L
1 V-
Table 7.6 MS/NS LED Specification
Lit in Green Flashing in Green
1
―
―
―
Table 7.7 MS/NS LED detail
Description
I/O connection
established
I/O connection not
established
Checking node
address overlap/no
power supply to the
network
Node address
overlaps/it is
detected that the bus
is not functioning
Communication
timeout
Illegal switch setting
Slave unit failure
WDT error
No power supply to
the PLC/ waiting for
module initialization
Chapter 7 Discrete I/O Slave Unit Specifications
Wire color
Red
White
Bare Wire
Blue
Black
Lit in Red
2 4
― ―
― ―
― ―
Action to take
―
Confirm that the DeviceNet master is working normally.
Check the communication speed of each device.
Check that 24 V DC is supplied.
Check the node address and communication speed of
each device.
Check to see if a cable is broken.
Check that the terminal resistor is connected properly.
Check that the cable length is within the specification
range.
Check the communication speed of each device.
Check to see if a cable is broken.
Check that the terminal resistor is connected properly.
Check that the cable length is within the specification
range.
Check the rotary and DIP switches. Once they are
corrected, turn the power supply on again.
Turn the power supply off and then on again.
If the error persists, replace the unit.
Check that the specified voltage is supplied to the power
module of the PLC.
7-5
Flashing in Red Turned off
5
―
―
―
3
6
7
8