User manual

Toolbox 32 User Manual 1.47d www.cse-semaphore.com/mykingfisher

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Communicating With An RTU

Local RTU

• Connect the Toolbox cable to port 1 of the RTU as shown below. Note: if there are only USB ports on the

PC (and no DB9 serial COM ports), a USB to 9-pin [DB9 male] RS-232 serial converter cable will be

required.

RJ45 Cable

DB9 PC Serial Port

Adaptor ADP-05

Port 1

To PC USB Port

DB9 Male

PC-1

CP11

• COM port 1 and a baud rate of 9600 are commonly used between the PC and RTU. If COM1 is being

used by another device, COM2 to COM48 can be used to communicate with the RTU instead. To

change the port used by Toolbox, select Configuration, PC Setup.

• With no Site configuration loaded in Toolbox, select View, Auto Detect. Toolbox will then attempt to

detect the address of the local RTU. If the COM port is working OK, the RX light of the RTU port will flash

each time Toolbox attempts to communicate.

• Auto Detect will first try to communicate at the baud rate configured in PC Setup. If the baud rate is

correct, Auto Detect will return the address of the RTU. If the baud rate is incorrect, Toolbox reports “No

RTU detected at current baud rate. Continue search at other baud rates?” Select Yes. Toolbox will then

try all the baud rates to communicate with the RTU and when successful will return the address and

baud rate of the local RTU port. When asked “Do you want to set the PC to this baud rate?” select Yes.

• The local RTU will only respond to messages that target its own address or address 0. All RTUs respond

to address 0. Toolbox uses address 0 when no Site configuration is open. If a configuration is opened or

created, Toolbox will then use the address of the selected configuration when communicating with the

RTU.

• To check the status of the RTU, select View, RTU Status. The time field will keep updating every time

Toolbox polls the RTU. The Comms Repeat Rate setting in PC Setup determines the update rate.

• The modules that are installed on the backplane are automatically detected by the RTU and can be

viewed using View, Hardware Overview. By selecting the button next to any of the modules that appear,

the module input and output (IO) details are displayed on the screen. Outputs can then be set using

Toolbox if they are not being controlled by ladder logic.