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Modbus Interface
Installation Manual
EN
(2) Perform the communication status checking between Modbus Interface and Modbus Master.
Check that the communication with Modbus Master is normally performed.
When bit2 of SW3 is set to “OFF”, the communication status with the Modbus Master is displayed by LED5.
LED indication during normal operation
8 TCB-IFMB640TLE product replacement
This product can be used as TCB-IFMB640TLE variable specification mode.
TCB-IFMB641TLE installation
Turn off the power and remove the TCB-IFMB640TLE and then install the TCB-IFMB641TLE. Install the TCB-
IFMB641TLE according to “4 Installation” and “5 Connection of power cables / earth wires / communication cables”
in this manual.
TCB-IFMB641TLE setting
Set the RS-485 baud rate and the address switches of the TCB-IFMB641TLE according to “6 Setting”, the same
as the installed TCB-IFMB640TLE. (For address 1, set the terminator of the RS-485)
Switching variable specification
To switch from the TCB-IFMB641TLE variable specification to the TCB-IFMB640TLE variable specification, set
bit1 of SW3 to ON. When the power is turned on in this configuration, operation will be the same as the TCB-
IFMB640TLE.
Communication status with Modbus Master LED5 Remarks
Normal reception Lighting Lights for one second
Error Light off
A communication error occurred or no data has been
received.
LED Description
LED1 Power indicator Lights while the power is on.
LED2 RS-485 communication status indicator Blinks during RS-485 communication.
LED3 TCC-LINK communication status indicator Blinks during TCC-LINK communication.
LED4 TCC-LINK communication error indicator Lights temporarily when TCC-LINK is busy.
LED5 TEST indicator Used in the test mode.
10-EN
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