User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-N16
7.11.4.
Examples of external output configuration
s
During the
External output
configuration the user should terminate communication
between the MultiCon and the SLAVE device.
7.11.4.1.
A
pplication of external output for protocol Modbus in the MASTER mode
See also:
Chapter 7.15.3. Modbus - MASTER mode
Task:
The task is to send data located in Logical channel 1 to a SLAVE device (address 5)
without scaling and restrictions.
Fig. 7.100. Connection diagram for Modbus MB2
Solution:
First we need to configure settings in the Modbus menu as it is shown in
Configuration of the Modbus Input in the MASTER mode.
Next we configure logical channels used to set values, which will be sent by RS-485 to the
output. To do this:
170
i
Slave device 1
Device name: Flowmeter
Modbus settings:
Baud rate: 19200 bit./sek.
Slave address: 5
Registers:
Register: 1h
Register: 2h
Register: 4h
Register: 8h
P
E
A
B
G
N
D
RS485
D
ig
ita
l i
np
ut
G
N
D
+
24
V
Power supply
(depending on version)
Block D
RJ-45
ETH
A
B
G
N
D
RS485
GND
B
A