CoolMasterNet FAQ

General

How to make connection from PC

We suggest to use Putty a simple and free terminal program. Connection can be done via RS232 or TCP/IP.

RS232 Connection	TCP/IP Connection
Determine the number of your PC's RS232 port	Determine the IP address of CoolMasterNet. It is showed on LCD screen
Run and configure Putty as shown below
Click Open and start communicating with CoolMasterNet

Networking

How to change IP address and/or other network settings

IP network configuration is made with ifconfig command described in PRM document.

Modbus RTU

How to enable Modbus RTU on line L3

Below command will enable Modbus RTU functionality on line L3.

>line type L3 CG5

CG5 stands for "CoolGate5", which is a new Modbus RTU implementation in CoolMasterNet (see details). There is also a CG4 option which will enable an implementation backward compatible with a legacy "CoolGate" device.

How to query or change Modbus Slave Address

Modbus Slave Address is available via line command.

>line L1: SA U00/G05 myid:E5 Simul(5) Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0 L2: DK Slave U00/G00 myid:0B Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0 L3: CG5 Modbus Address:0x40(64) 9600_8N1 Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0 L4: Unused Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0 L5: Unused Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0 L6: Unused Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0 L7: LG Master U00/G00 Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0 L8: Unused Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0 OK

To change Modbus Slave Address use line command as shown below:

>line myid L3 50

This command will set Modbus Slave Address 0x50(hexadecimal)