7-21
Format of command and response
Command message
All command-related items should be noted in the text segment. The unit number must be specified
before sending the command.
1. Header (start code)
Commands must always have a “%” (ASCII code: H25) or a “<” (ASCII code: H3C) at the beginning of a
message.
2. Unit number
The unit number of the PLC to which you want to send the command must be specified. In 1:1
communication, the unit number “01” (ASCII code: H3031) should be specified.
3. Text
The content differs depending on the command. The content should be noted in all upper-case
characters, following the fixed formula for the particular command.
4. Check code
BCC (block check code) for error detection using horizontal parity. The BCC should be created so that it
targets all of the text data from the header to the last text character. The BCC starts from the header and
checks each character in sequence, using the exclusive OR operation, and replaces the final result with
character text. It is normally part of the calculation program and is created automatically.
The parity check can be skipped by entering “* *” (ASCII code: H2A2A) instead of the BCC.
5. Terminator (end code)
Messages must always end with a “CR” (ASCII code: H0D).
Содержание FP E Series
Страница 1: ......
Страница 16: ......
Страница 17: ...Chapter 1 Functions and Restrictions of the Unit ...
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Страница 29: ...Chapter 2 Specifications and Functions of the Unit ...
Страница 37: ...2 9 Circuit diagram C32 Y0 Y1 Y3 Y4 C28 Y0 Y1 Y3 Y4 Y2 Y5 to YF Y2 Y5 to YB ...
Страница 48: ...2 20 ...
Страница 49: ...Chapter 3 Expansion ...
Страница 56: ...3 8 Terminal layout diagram Note The numbers in the connector are for the first expansion ...
Страница 61: ...Chapter 4 I O Allocation ...
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Страница 67: ...Chapter 5 Installation and Wiring ...
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Страница 91: ...Chapter 6 High speed counter Pulse Output and PWM Output functions ...
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Страница 125: ...6 35 Pulse output diagram ...
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Страница 144: ...6 54 Program Continued on the next page ...
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Страница 147: ...6 57 Program ...
Страница 151: ...Chapter 7 Communication Cassette ...
Страница 202: ...7 52 Procedure of communication In the following example the Micro Imagechecker is connected to COM1 port ...
Страница 210: ...7 60 The values of DT50 and DT51 are written in DT0 and 1 of PLC ...
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Страница 239: ...Chapter 8 Self Diagnostic and Troubleshooting ...
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Страница 249: ...Chapter 9 Precautions During Programming ...
Страница 260: ...9 12 Example 2 Using the CT instruction between JP and LBL instructions ...
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Страница 269: ...Chapter10 Specifications ...
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Страница 287: ...Chapter 11 Dimensions ...
Страница 290: ...11 4 11 1 3 Expansion Unit FPG XY64D2T FPG XY64D2P FPG EM1 ...
Страница 293: ...Chapter 12 Appendix ...
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Страница 437: ...12 145 12 7 ASCII Codes ...
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