YOKOGAWA F3SP71-4S, User Manual

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IM 34M06P15-03E 2nd Edition: Jan. 31, 2012-00
2.4 Function Codes
This section describes the Modbus function codes.
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Support Function Codes
The functions codes supported by this module are as shown below.
Table 2.4.1 Function Code List
Function
Code
Name Description Supported
01 ($01) Read Coils Consecutively reads the status of a max. of
2,000 coils.
Yes
02 ($02) Read Discrete Inputs Consecutively reads the status of a max. of
2,000 inputs. Yes
03 ($03) Read Holding Registers Consecutively reads the status of a max. of 125
holding registers. Yes
04 ($04) Read Input Registers Consecutively reads the status of a max. of 125
input registers. Yes
05 ($05) Write Single Coil Writes a single coil. Yes
06 ($06) Write Single Register Writes a single register. Yes
15 ($0F) Write Multiple Coils Consecutively writes the status of a max. of
1,968 coils. Yes
16 ($10) Write Multiple Registers Consecutively writes the status of a max. of 123
registers. Yes
20 ($14) Read File Record Reads a max. of 124 file records. Yes
21 ($15) Write File Record Writes a max. of 122 file records. Yes
22 ($16) Mask Write Register Mask a single register with AND or OR. Yes
23 ($17) Read/Write Multiple Registers Reads and writes multiple registers. Yes
24 ($18) Read FIFO Queue Reads FIFO tables. Yes