Unipulse DeviceNet F381A, Operation Manual

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97
5 COMMUNICATIONS
97
CO
MM
UNICATIO
NS
Chapter
5
- Waveform write command
Example: Writing to Comparison Waveform (LO limit) of Work No. 3
①
Writing “3” to Work No.
0
（
STX
）
0 W V A 0 SP 0
F381A’s return
(In normal processing)
Waveform data
4 0 0 0 2 - 7
- 1 0 0 . 0 0
1 E 0 Delimiter 4
2nd Waveform data
・ ・・・ ・
Checksum of the waveform data
All the read waveform data is totaled by ignoring respective decimal points,
and the two low-order bytes of the result are expressed in 4-digit hexadecimal.
Example) Checksum of three waveform data
-01.00 + (+31.25) + (+12.99)
＝
-0100 + (+3125) + (+1299)
＝
4324
＝
10E4H
Waveform data
Amount of data: Data for the specified range “the end of the range – the start of the range + 1”
2048 data in the example (2048
× 7 bytes)
* If the same data No. is specified for the start and the end of the range,
only one data is read.
0: Load: -09999 to +09999 (with a decimal point)
1: Displacement (Front): 0 to 10235 (with a decimal point)
Displacement (Back): -10235 to 0 (with a decimal point)
Time:
+00000 to +51175 (with a decimal point)
The unit of time differs according to Measurement Length, X-axis Setting.
0.5s:
Unit ms
1.0s: Unit ms
2.0s: Unit ms
5.0s: Unit ms
10.00s: Unit s
Command received by the F381A
+ 1 2 0 . 9 9
（
STX
）
Delimiter N 1 G
F381A’s return
(In abnormal condition)
Header (If there is no header, no data will result.)
NG No.
1: Receipt of a statement different from the command format
2: Attempt to write a set value outside the setting range
- 0 9 0 . 8 7
S M U
＝
at the start of the range at the end of the range
Host
(Transmission to the F381A)
Item No. (See the list of set value commands.)
Work No. in the example
Item group (See the list of set value commands.)
Work Setting in the example
0 0 + 0 0 0 0 0 0 3 W 1 0 Delimiter
Data to write
“3” in the example