Ametek Thermox WDG-1200 Insitu, User Manual

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User Interface / Calibration
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4-21
Modbus Interface
serial data bus configuration
The serial data bus can be set to any of the following four configurations:
code baud rate Parity stop bits
1200 1200 Even 1
4800 4800 Even 1
9600 9600 Even 1
96nP 9600 None 1
Data format: Modbus RTU
The default setting is 1200. To chnage the serial data setting:
Press F1. Use the up arrow until the display reads 417 and press Enter.
Press Enter again and F1 four times until the display shows: SYSt.
Press Enter and F1 until the display shows: bAud.
Press Enter and use the up and down arrows to change the baud code.
When correct, press and hold Enter until the display flashes.
Proceed to next section.
slave address and floating Point format
The default slave address is 11. To change the slave address, first set the baud
rate as in previous section, then:
Press F1. The display shows: PrAd.
Press enter and use the up and down arrows to change the slave address.
When correct, press and hold Enter until the display flashes.
Press F1 twice to return to the normal display.
function codes supported
03 Read multiple register
06 Pre-set single register
exception codes
01 Illegal function
02 Illegal address
03 Illegal data value (Write request to a read-only customer)