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5 - jumper settings, Modbus rtu/ascii power 9-30 vdc, Device id baud rate – AMETEK 7230 HT Digital Probe User Manual

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2.5 - Jumper Settings

In the Modbus slave confi guration, jumpers JP2 and
JP3 control the Modbus format (RTU or ASCII) and the
communication settings, according to the chart below.
The Data bits for the Down position of JP3 depend
upon the setting of JP2 (RTU or ASCII format).

Note these jumpers have no effect when the 7231 HT is
confi gured as a Modbus master.

JP2

JP3

Mode

Data bits Stop

bits Parity

*Up

*Up

RTU

8

1

None

Up

Down

RTU

8

1

Even

Down

Up

ASCII

8

1

None

Down

Down

ASCII

7

1

Even

0 1

2

3

45

67

8

9

0 1

2

3

45

6

7

8

9

0 1

2

3

45

6

7

8

9

0 1

2

3

45

67

8

9

DM231

Status LED

Power /

4-20 mA Converter

Status LED

MODBUS RTU/ASCII

Power 9-30 VDC

0 1

2

3

45

67

8

9

0 1

2

3

45

6

7

8

9

0 1

2

3

45

67

8

9

100’s

10’s

1’s

Device ID

Baud Rate

0 - 19200 Master Modbus
4-20m Module

1 - 600 bps
2 - 1200 bps
3 - 2400 bps
4 - 4800 bps
5 - 9600 bps
6 - 14400 bps
7 - 19200 bps
8 - 38400 bps
9 - 57600 bps

0 1

2

3

45

6

7

8

9

JP2

JP3

Down

Up

Down

Up

}

}

{

{

Figure 2.1 - 7231 Jumper & Switch Settings

* Default Setting

(Switches and jumpers shown in the default positions.)