Watlow Series 734 Data Communications Manual de usuario descargar pdf (Pagina 13)

13

WATLOW Series 733/734

How to Use Data Communications

XON/XOFF "?"

Figure 7 -

XON/XOFF "?"

Command Example.

0

0

30

5

35 30

CR

0D

ASCII

Characters

HEX

Value

<XOFF>

13

<XON>

11

XON/XOFF "?" Command Example

You want to know the Alarm 1 Low (A1LO) value. The "?" uses a variation of the

message syntax shown just below. This protocol requires an ending carriage

return character.

"?" Command syntax with XON/XOFF Protocol:

? <space> data.1 <cr>

Enter in ASCII:

? <space> A1LO <cr>

The hex string will be:

3F2041314C4F0D

The value of A1LO will be between rL (Range Low) and rH (Range High), say, 500.

Response from the Series 733/734:

<XOFF> <XON> <current value of A1LO> <cr>

The hex response string is:

13113530300D

ASCII

Characters

HEX

Value

1

41 4C31

Space

?

3F 2 0

A

L

ace

CR

0

0D

4F

O

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 23 24

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