Rievtech ELC Series - Page 170

EN
Programmable Relay ● User Manual for ELC, EXM and PR Series 170 2020 v6.0 ● © Rievtech Co.,
Ltd. ● www.rievtech.com
The number setting of Q, I, AQ are continuous. AQ12
cannot be set as AQ 12 and should be set AQ 4 as above
figure shows.
The following table shows how to set the addresses.
NOTICE:
This table also can be applied to the
configuration of the Modbus Write function block.
Model
I, Q, AI, AQ
Dialog box set
CPU
I1-IC
I1-I12
Q1-Q6
Q1-Q6
AI1—AI8
AI1—AI8
AQ1—AQ2
AQ1—AQ2
Expansion1
(Address is 1)
I11-I18
I13-I20
Q11-Q18
Q7-Q14
AI11-AI18
AI9—AI12
AQ11-AQ12
AQ3, AQ4
Expansion2
(Address is 2
I21-I28
I21—I28
Q21-Q28
Q15—Q22
AI21-AI28
AI17---AI24
AQ21-AQ22
AQ5--AQ6
…………….
The data format of instruction:
Name
Data Format
F, I, Q
Bit
AF, AI, AQ
Signed Short
Modbus Write
Description of function
With a high level at En, the Modbus Write block will be
activated and the xLogic could communicate with
peripheral as a master via RS232 or RS485 interface and
the output of the block will be switched on when the
communication is established successfully. Otherwise, the
output (Q pin) is kept “off” which means communication
has failed.
A signal at input R resets output Q and disables this block
at the same time.
Connection
Description
Input En ( )
A high signal at En input will enable
“Modbus Write” function block to be
activated
Input R ( )
Reset the value read from peripheral
and set the output to 0 via the R
(Reset) input.
Reset has priority over En
Parameter
Slave address: 1 is a default.
Communication protocol: Modbus
(RTU)
Communication parameter: baud
rate (BPS), Data bits, Stop bits,
Parity, Overtime (response timeout)
Comm Type: RS232 or RS485
(Communication interface of xLogic)
Data register Index: High Low
/Low High