Watlow Series 734 Data Communications Manual de usuario descargar pdf (Pagina 15)

WATLOW Series 733/734

How to Use Data Communications

ANSI X3.28 "="

Figure 8 -

ANSI X3.28 "="

Command Example.

10 04

<DLE>

<EOT>

ASCII

Characters

HEX Value

ASCII

Character

HEX

Value

Space

41 4C31 20 35 30 30

<Space>

3D 20

<STX>

<ETX>

02 03

Optiona

Carriag

Return

Stopping Communications in ANSI X3.28 Protocol

The master device, your computer, must end communications with Device #4 by

using Data Link Escape (DLE) and End of Transmission (EOT) characters.

Enter in ASCII: <DLE> <EOT>

Response from the 733/734:

None

ANSI X3.28 "=" Command Example

The "=" Command sets a specific 733/734 prompt to a specific value. The general

command syntax applies to all commands. The definition and number of argu-

ments depends on the command itself. See Table 5, Pages 17.

In this example, you want to change the Alarm 1 Low value to 500°. Here, the "="

command will do the job.

'"=" command Syntax with ANSI X3.28 Protocol:

With the "=" command, data.1 is the Series 733/734 prompt, in this case Alarm 1

Low , A1LO. Data.2 is the value you want to set for that prompt, in this example,

500.

Enter in ASCII:

The hex string is:

023D2041314C4F2035303003

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 23 24

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Watlow Series 734 Data Communications Manual de usuario Pagina 15

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