COTRUST CTH200 Series User Manual

Applications
134
Table5-22 CAN station status table
Byte
Address distribution
Status value explanation
SMB
(status)
100
SMB550: CAN communication
status of master station(CPU)
0x00: Initialize
0x01: Disconnect
0x04: Stop
0x05: Run
0x7f: Pre-run
0xff: Configuration data error
SMB551-SMB582: CAN
communication status of 1~32
slave station(Node ID from
small to large)
0x00: Initialize
0x01: Disconnect
0x04: Stop
0x05: Run
0x7f: Pre-run
0x7: Configuration parameter error
SMB583-SMB614: Run
warning of 1~32 slave station
(Node ID from small to large)
bit7: IO information configuration
compare with 277C reality:
0: No error
1: Error
Bit6-Bit0:
277C IO expansion module
diagnostic information bit0 indicate
the first module, bit6 indicate
seventh module:
0: No warning
1: Warning
(Above is the definition of 277C
slave station different from others)
SMB615-SMB649
Reserved
Note
SMB550-SMB649 is read-only memory, user cannot write
6.2 Modbus TCP Communication
This Guide leads users to create an application by using a specific instance, thus can help users
understand the Modbus TCP communication function of CTH200.
In the Modbus TCP communication network, with CPU as Slave, the communication is
independent with the whole cycle period; with CPU as Master, the Receiving / Sending is
controlled by user program.
When using the EtherNET port for Modbus TCP communication, CTH200 PLC can serve as
Modbus TCP slave directly without any configuration, the default port number is 502 and if you
need to modify IP address, please refer to Chapter 2 Getting Started.

COTRUST CTH200 Series Specifications

General

Brand	COTRUST
Model	CTH200 Series
Category	Controller
Language	English