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A. C o m m u n i c a t i o n s
A - 1 9
Field Name
ASCII
Error Check ( LRC )
AD
END 1
0D (Hex)
END 0
0A (Hex)
Example2
:
Case 1: C0
Master
→
ELC : 01 06 0E 00 12 34 AF CR LF
Case 2: C232 (32bit) (This is an exception of the function code.)
Master
→
ELC: 01 06 0E E8 12 34 56 78 EF CR LF
Case 3: D10
Master
→
ELC: 01 06 10 0A 12 34 99 CR LF
Case 4: D1000
Master
→
ELC: 01 06 13 E8 12 34 BA CR LF
Command Code
:
15, Write Multiple Coils
Max contacts/coils: 255
Example: Set Coil Y007…Y000 = 1100 1101, Y011…Y010 = 01.
Master
→
ELC “: 01 0F 05 00 00 0A 02 CD 01 11 CR LF”
Sent message:
Field Name
ASCII
Heading 3A
(Hex)
Slave Address
01
Command code
0F
Coil Address Hi
05
Coil Address Lo
00
Quantity of Coils Hi
00
Quantity of Coils Lo
0A
Byte Count
02
Force Data Hi
CD
Force Data Lo
01
Error Check (LRC)
11
END 1
0D (Hex)
END 0
0A (Hex)
ELC
→
PC “: 01 0F 05 00 00 0A E1 CR LF”
Feedback message:
Field Name
ASCII
Heading 3A
(Hex)
Slave Address
01
Содержание ELC-PB
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