91
Process Value Read: RX
Section 3-3
When Process Value Unit Set is 0.1
Response Block with Error Detected
The response block for Process Value Read (RS) will include an error code if
an error is detected by the E5ZE while the E5ZE is processing the command.
When Process Value Unit is 1
When Process Value Unit Set is 0.1
1.
The response block for Process Value Read (RX) does not include read
data or an error code if the end code of the response block is other than 00.
2.
Refer to
2-4 End Codes
.
3.
Refer to
2-5 Error Codes
.
Communications Example
In this example, the E5ZE is operated with Process Value Read (RX) under
the following conditions.
Unit no.:
1
Control Point:
3
Process Value Unit: 1
Process Value:
500
°
C
Command
Response
@ R X
*
FCS
End code
Unit
x16
x16
x16
x16
Header code
Terminator
Read data
x10
x10
x10
x10
Or minus sign (-)
x10
Decimal point
Process value
s
1
1
1
0
0
0
3
2
-1
@ R X E
Error code
Terminator
FCS
x16
x16
Header code
Unit
x10
x10
x10
x16
x16
End code
*
s
1
1
1
0
0
0
2
@ R X
E
*
FCS
End code
Unit
x16
x16
x16
x16
Header code
Terminator
x10
x10
x10
Error code
Space
(20 H)
s
1
1
1
0
0
0
2
*
@ 0 1 R X 0 3 0 0 4 8
s
*
@ 0 1 R X 0 0 0 5 0 0 4 E
s
500
°
C
Normal end