20 SERIAL COMMUNICATION INSTRUCTIONS
20.15 Switching the Mode
1723
20
Precautions
• Stop the whole data communication with the external device before issuing the ZP.UINI instruction. If the ZP.UINI instruction
is issued while data communication is in progress with the external device, the following will occur.
• If connection is provided through a modem, cut off the line to the external device before issuing the ZP.UINI instruction. If
the ZP.UINI instruction is issued, the line will be cut off.
• If the communication protocol or transmission setting has been changed using the ZP.UINI instruction, the communication
protocol and transmission settings of the external device side must be matched with the new settings. In addition, if the
station number setting, or own station number, has been changed, the station number in the request message of the
external device must be modified to the new station number.
• The following table summarizes the processes that take place if another instruction is issued while the ZP.UINI instruction is
active or the ZP.UINI instruction is issued while another instruction is active with the same channel.
• Before the ZP.UINI instruction is executed, the setting change in the transmission settings must be kept set to "Permitted"
by using the parameter setting of the module. In addition, if the parameter is not yet set, the setting change in the
transmission settings will be assumed to be "Permitted" during operation.
• Simultaneous use of mode change with the ZP.UINI instruction and that with the mode change request signal (Yn2/Yn9)
must not be attempted. If it is attempted, an error will occur at an error code of 7FF5H.
• To use the current value of the communication protocol, transmission specifications, or station number as it is, acquire the
value from each of the status storage areas in buffer memory before setting it in the control data.
Operation error
• If the ZP.UINI instruction is issued during receiving
Receiving is interrupted, and the whole receive data stored so far is discarded.
• If the ZP.UINI instruction is issued during sending
When the ZP.UINI instruction is accepted, sending is interrupted.
Instruction to execute
concurrently
Possibility of
concurrent execution
Handling for concurrent execution
G(P).ONDEMAND
A dedicated instruction concurrent execution error (7FF0H) occurs in the second
instruction.
G(P).OUTPUT
G(P).PRR
G(P).BIDOUT
G(P).BIDIN
G.INPUT
ZP.CSET
G(P).PUTE
G(P).GETE
G(P).CPRTCL
Z.BUFRCVS
G(P).SPBUSY
ZP.UINI
The instruction is ignored and does not start processing until the active instruction
completes.
Address (decimal (hexadecimal))
Application
CH1
CH2
591(24FH)
Station number (instruction setting)
594(252H)
610(262H)
Communication protocol status
595(253H)
611(263H)
Transmission status
Error code
((s)+1)
Description
7000H to 7FFFH
MELSEC iQ-R Serial Communication Module User's Manual (Application)
Содержание MELSEC iQ-R Series
Страница 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
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Страница 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Страница 34: ...32 MEMO ...
Страница 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Страница 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Страница 204: ...202 5 SEQUENCE INSTRUCTIONS 5 3 Output Instructions Operation error There is no operation error ...
Страница 470: ...468 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 472: ...470 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 479: ...6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions 477 6 Operation error There is no operation error ...
Страница 504: ...502 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 518: ...516 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 520: ...518 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 754: ...752 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 756: ...754 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 758: ...756 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 760: ...758 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 895: ...7 APPLICATION INSTRUCTIONS 7 16 Ramp Signal Instruction 893 7 Operation error There is no operation error ...
Страница 917: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 915 7 Operation error There is no operation error ...
Страница 919: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 917 7 Operation error There is no operation error ...
Страница 1415: ...13 SFC PROGRAM INSTRUCTIONS 13 1 SFC Control Instructions 1413 13 Operation error There is no operation error ...
Страница 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Страница 1795: ...25 TYPE CONVERSION FUNCTIONS 25 1 Converting BOOL to WORD 1793 25 Operation error There is no operation error ...
Страница 1805: ...25 TYPE CONVERSION FUNCTIONS 25 10 Converting WORD to DINT 1803 25 Operation error There is no operation error ...
Страница 1819: ...25 TYPE CONVERSION FUNCTIONS 25 21 Converting INT to DWORD 1817 25 Operation error There is no operation error ...
Страница 1950: ...1948 32 STRING FUNCTIONS 32 2 Extracting String Data From the Left Right Operation error There is no operation error ...
Страница 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Страница 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Страница 2082: ...2080 APPX Appendix 6 Process Control Program Examples 129 Set the default value of the loop tag ...
Страница 2093: ...APPX Appendix 7 List of Loop Tag Memory Areas Used by Process Control Instructions 2091 A MEMO ...
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