Simex multicon cmc-99 - MODBUS

User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
7.15. MODBUS
The basic version of MultiCon has one RS-485 port built-in. The communication ability
can be increased by installing a communication module into slot D of the device (
Fig. 7.125
).
This module offers 2 additional serial ports (one RS-485, and one RS-485/RS-232) and one
ethernet port, which allows the creation of an advanced Multi-Modbus system. In the current
software version, a MODBUS RTU and MODBUS TCP/IP protocol are available and every
port can be switched to Slave or Master (except port 4 which can be only SLAVE) mode.
To establish connection between MultiCon and other device using TCP/IP protocol,
port number 502 must be unlocked in software and hardware firewall.
Fig. 7.125. Serial communication ports available in the device
202
SERVICE
Power supply
(depending on version)
1
2
8
5
6
7
3
4
+24V DC ±5% (Imax. = 200mA)
digital input
0/15..24V DC
RS-485
GND
GND
A+
B-
isolated
19
16
17
18
14
15
RS-485(2)
GND
RxD
A+
B-
13
10
11
12
9
A+
B-
GND
TxD
CTS
RTS
RS-232 + RS-485 (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
i
Device configuration
MENU
General settings
Logical channels
Built-in inputs
Built-in outputs
External outputs
Profiles/timers
Controllers
Groups
Modbus
Network settings
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