User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
Fig. 7.150. Serial communication ports available in the device
7.15.1.
Modbus - General settings
The window with basic parameters of communication interfaces is shown in
Fig. 7.151. Configuration parameters for
SLAVE
mode
The arrows placed in the upper right corner of the screen allow
switching between available serial ports. The middle button can be used
for direct selection of a specific communication port from the list.
The parameter common for all Modbus protocol modes is:
–
Mode
- which has the following options:
•
disabled
– the selected Modbus port is inactive,
•
SLAVE
– this device is a SLAVE device, see
Chapter 7.15.2Modbus - SLAVE
•
MASTER
– this device is a MASTER device and manages the Slave devices,
see
Chapter 7.15.3. Modbus - MASTER mode
235
SERVICE
Power supply
(depending on version)
1
2
8
5
6
7
3
4
+24V DC ±5%
(
I
max. = 200mA)
digital input
0/15..24V DC
RS-485
GND
GND
A+
B-
isolated
19
16
17
18
14
15
R
S
-4
85
(2
)
GND
RxD
A+
B-
13
10
11
12
9
A+
B-
GND
TxD
CTS
RTS
R
S
-2
32
+
R
S
-4
85
(
3)
GND
19
GND
A+
B-
GND
A+
GND
A+
Slot D- ACM module
Port MB1
Port MB2
Port MB3
B-
B-
USB
host
RJ-45
ETH
Port MB4
MASTER
device
MASTER/
SLAVE
device
SLAVE
device
MASTER/
SLAVE
device
MASTER/
SLAVE
device
