Omron E5ZD, Руководство по эксплуатации

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93
Command Format The format for this command is as shown below. The unit number, memory bank,
control point, and alarm must be specified.
@ 0 Unit R % Bank Point 0 CR
Header code
Terminator
*
Data code
00 : Alarm 1
01 : Alarm 2
FCS
Command Examples The following command is used to read the alarm temperature setting for alarm 1
in memory bank 2 of control point 1 on Unit 2.
@ 0 2 R % 2 1 0 0 3 6 CR
*
Response Format The responses returned for this command are shown below. The response dif-
fers depending on the type of sensor and the temperature range setting (see be-
low). These responses assume that the header code in the command block was
transmitted and read normally and that the end code is 00. If the end code is not
00, the desired data will not have been read and the end code will be followed
immediately by the FCS. If the header code in the command block was not rec-
ognizable, a header code of IC will be returned without an end code (see
Section
4-1-2 End Codes for the IC header code response format).
The following format is used with K or J sensors, or when the temperature range
for Pt100 or JPt100 sensors is between 0
°
and 500
°
C (32
°
to 932
°
F). In either
case, the alarm temperature returned is four digits (or three numeric digits with a
sign digit) in increments of one degree. 2D
hex
is used as the negative sign.
When Setting Unit is 1
@ 0 Unit R % CR
Header code
Terminator
*
x10
3
x10
2
x10
1
x10
0
Sign
Alarm setting End code FCS
The following format is used with Pt100 or JPt100 sensors when the tempera-
ture range is between –100.0
°
and 200.0
°
C (–148
°
to 392
°
F). In this case, the
alarm temperature is returned in five digits (i.e., a sign digit plus four numeric
digits) in increments of one-tenth of a degree. The decimal point is not present,
but ensure that it is given due consideration when reading the data. 2D
hex
is
used as the negative sign.
When Setting Unit is 0.1
@ 0 Unit R % CR
Header code
Terminator
*
Sign x10
2
x10
1
x10
0
x10
–1
Imaginary decimal point
End code FCS Alarm setting
Temperature Control Commands (All Controllers)
Section 4-2