Omron K6PM-TH, Руководство пользователя

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6 Monitoring and Setting with the Modbus TCP
K6PM-TH Thermal Condition Monitoring Device User’s Manual (H231)
6-
2 Fu
ncti
on C
ode
s
6
6-
2-5 Excep
tion C
ode List
 Request
 Normal Response
Note For the other elements (the elements shaded in the above figure), the value specified in the request is
set.
The following is the exception codes when an error response occurs. Confirm this content and review
the request.
Example: Change IP Address
(1): Transaction ID Specify any value. For example, 0000 hex is used in this explanation.
(2): Protocol ID Specify 0000 hex.
(3): Number of bytes transferred The total number of bytes of (4) and the successor are 11, so specify
000B hex.
(4): Unit ID Specify FF hex.
(5): Function code 10 hex (Writing of multiple registers) is specified.
(6): Start address Specify the register address of the IP address.
(7): Number of words to read The IP address is 2 words (4 bytes), so specify 0002 hex.
(8): Byte count The total number of bytes of (9) is 4 bytes, so specify 04 hex.
(9): Data Specify 192.168.250.30 (C0 A8 FA 1E hex) as the IP address.
(3): Number of bytes transferred The total number of bytes of (4) and the successor are 6, so 0006 hex is
set.
6-2-5 Exception Code List
Exception
code
Types of error Function
01 hex Illegal function codes In the case of an unsupported function code.
02 hex Illegal data address When an address that cannot be read or written is included.
03 hex Illegal data value When data that cannot be written, such as data that is outside
the setting range, is included.
04 hex Failure in associated device This is the state in which normal execution cannot be per-
formed.
• When K6PM-TH is an error state.
• When an operation command and writing of multiple registers
cannot be performed. Refer to 6-3 Register Address Lists on
page 6-8 for details.
(8) (9)
(1) (2) (3) (4) (5) (6) (7) →
→
00 00 00 00
C0 04 A8 FA 1E
00 0B C2 00 00 02 FF 10
(1) (2) (3) (4) (5) (6) (7)
00 00 00 00 C2 00 00 02 00 06 FF 10