Sharp JW-21MN manual Case of a master station, 12-3, Communication monitor flag

Page 84

[2]In the case of a master station

(1)Communication monitor flag

This flag is used to monitor the communication condition with other stations. Non-connected station keeps this flag as "OFF."

Flag

Condition for flag operation

Flag operation

Own

When the parameter address 007777(8) of the master station is set to "01(H),"

ON

station

and the master station is operating normally.

flag

 

 

When the parameter address 007777(8) of the master station is set to "00(H)."

 

(master

OFF

Improper setting of parameter, BCC check error, or other errors.

station)

 

Flag

Condition for flag operation

Flag operation

 

 

 

 

Other

Normal communication with slave stations.

ON

Specific

 

 

slave

Stopped communication or unable to

 

stationÕs

 

flag

communicate with slave stations.

OFF

station

Communication monitor flag (1) of the master

 

(01 to 77)

All slave stations

 

 

station is turned "OFF."

 

 

 

 

The master station periodically executes communication recovery operation with the communication error slave station. When the error situation is recovered, the master station returns to normal communication.

(2)Operation condition monitor flag [1]

This flag is used to monitor the operation condition of slave stations when the communication with each slave station is normal.

Non-connected station keeps this flag as "OFF."

Flag

Condition for flag operation

Flag operation

Own

Communication monitor flag (1) of the master station is turned "ON."

* ON

station flag

(master

 

 

Communication monitor flag (1) of the master station is turned "OFF."

OFF

station)

 

 

Flag

Condition for flag operation

Flag operation

 

Slave station is operating.

ON

Specific

 

 

 

slave

Other

Slave station stops operation (not by an error cause).

 

stationÕs

 

OFF

station

Communication monitor flag (1) of the master

All slave stations

flag

station is turned "OFF."

 

(01 to 77)

 

 

 

Slave station that communication monitor flag (1)

Not specified

 

is turned to "OFF."

 

 

 

*Even if a master station PC has stopped operation normally or by an error, the JW-21MN turns "ON" this flag while communicating.

(3)Operation condition monitor flag [2]

This flag is used to monitor the abnormal stop of each slave station when the communication with each slave station is normal.

Non-connected station keeps this flag as "OFF."

Flag

Condition for flag operation

Flag operation

Own

Communication monitor flag (1) of the master station is turned "ON."

* ON

station flag

 

 

(masterstation)

Communication monitor flag (1) of the master station is turned "OFF."

OFF

Flag

Condition for flag operation

Flag operation

 

Each slave station is normal.

ON

Specific

 

 

 

slave

Other

Any of the slave stations is faulty (caused to be

 

stationÕs

stopped abnormally).

OFF

station

flag

Communication monitor flag (1) of the master station

All slave

 

(01 to 77)

is turned "OFF."

 

stations

Slave station that communication monitor flag (1) is

Not specified

 

 

turned to "OFF."

 

 

 

 

*Even if a master station PC has stopped operation normally or by an error, the JW-21MN turns "ON" this flag while communicating.

12

12-3

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Page 83 Page 85
Contents JW-21MN JW-21MN Safety Precautions InstallationWiring Compel Maintenance Prohibit UseME-NET Module JW-21MN Table of contents Setting of Switches and Parameter 11-1 to Errors and Countermeasures 12-1 toDescription for Computer Link Operation 10-1 to Support Tools 14-1 to Specifications 15-1 to 13-1Appendix 16-1 to Features and Functions Data link functionComputer link function Installation WiringConnector Maintenance TreatmentStatic electricity Allocation of relay numberSystem Configuration JW20H JW-21MN JW-21MN JW30HName and Function of Each Part Front viewInstallation Installation procedureRemarks Processing of Cables Name Model MakerProcessing cable end Fine adjustment of blade cutting depth Cutting of coating, external conductor, and insulatorRemoval of coating, external conductor, and insulator Display of blade setting Processing of cable endConnector crimping procedure Connector ME-GP-01 Processing procedure Insert a sleeveRequired tools Hand-held crimping tool Crimping contactFixing the connector Insulation testConductivity test Wiring Method Cable trunk and branch linesRelaying of trunk cables Cable wiring procedure in control panel Page Waterproof and insulation processing of connectors Branch connectorStraight connector RemarksWiring of cables at outside control panels Check after wiringBranching method Station number of the additional stationReason Memory Address on the ME-NET Memory address for data linksMemory address map against JW20/JW20H Memory address map against JW30H JW30H address ME-NET addressMemory addresses for computer links JW20/20H ME-NET address CapacityJW30H address ME-NET address Capacity Remarks Description for Data Link Operation Communication methodData link Standard function Relay linkSetting item Set location Data link Save memory functionRegister link Required transmission time and communication delay time Required transmission timeCommunication delay time Data transmission between master PC and slave PC An example of synchronized transfer by OUT instructionMultiple installation of the JW-21MN Expansion of networkCase of mounting 4 sets of JW-21MN Hierarchical link Basic commands Optional commandsDescription for Computer Link Operation Computer link functionBasic commands 10-2Optional commands 10-3Communication format, basic pattern Write mode assignment None Communication format Read free memory sizeMonitor TMR, CNT, and MD 10-4Reading PC mode Setting PC mode10-5 Reading system memory Writing system memory10-6 Setting date Write mode assignment 1 or Communication formatReading date 10-7Setting time Reading time10-8 Correct clock time Monitor step status JW20/JW20H only10-9 Write mode assignment Read the optional parametersSet the optional parameters 10-10Read the special I/O parameters Set the special I/O parameters10-11 Release the secret function, register password JW30H only Set the secret function JW30H only10-12 Check the secret function JW30H only 10-13Response on error 10-14Setting of Switches and Parameter Operation procedure11-1 Switch setting of master station and slave station Mode switch ModeModule No. switch Unit no 11-2Station number switch STA no Termination resistance switch LT11-3 Reference Need for the termination resistanceShield ground switch LG 11-4Setting contents of master station parameters 11-6 Value HParameter for setting in master station Parameter for setting in slave stationCommunication area map 11-711-8 + ｈ 11-9Example for setting 11-10Maser station Slave station Standard Save memory When master station PC is JW20/JW20H 11-11When master station PC is JW30H 11-12Setting procedure 11-1311-14 Example Stop operation of data link HEX hexadecimal, byteStop operation of data link HEX hexadecimal, byte Data link function setting HEX hexadecimal, byte Set number of connecting stations DCM decimal, byte11-15 11-16 Set top address of register link area on the master station11-17 Set in parameter addresses 005000 to11-18 11-19 Set connection status of slave station Bit pattern, byte11-20 11-21 PC operationSetting item Contents11-22 Setting range of flag area When PC is JW20/JW20HWhen PC is JW30H 11-2311-24 Turn on the power of slave station PC Connect support tools 11-2511-26 11-27 11-28 Errors and Countermeasures Indication lamps12-1 Details MeasureFlag RemarkCase of a master station 12-3Communication monitor flag Operation condition monitor flagCase of slave station 01 to 12-4Monitor operation condition by each station PC 12-5Storage of error code 12-6System memory #170 to 177 option module error code System memory #160 to 167 self diagnosis error codeSystem memory #150 monitor error switch number 12-7Error history 12-8Replacement of the JW-21MN 13-1Support Tools Record and load by ladder software JW-92SP, JW-50SP Record14-1 Load 14-2Load to the personal computer Stop operation of the JW-21MNSpecifications General specificationsCommunication specifications SpecificationData link specifications Standard function SpecificationsSave memory function Specifications 15-2Computer link specifications Outside dimensional drawings15-3 Maintenance and check Appendix16-1 Recovery method at communication errors Check flow chart16-2 Check cable/connector 16-316-4 Cause Countermeasure16-5 007764 toSwitches required check in the JW-21MN Check items of cables and connectors16-6 Other casesCheck the errors timing Identify the error stationWhen identification of the cause is difficult 16-7Table of parameter memory 16-8Master station Set contents Setting method value, example 16-916-10 16-11 16-12 Slave station 01 toSpecial functions unique to the JW-21MN 16-13Remote programming and remote monitor Support tool Opposite module Connection module16-14 Function Standard network connectionExpansion network connection Operation exampleNetwork setting 16-15Parameter setting by remote function When used with a computer link16-16 Alphabetical Index Operation procedure Waterproof and insulation processing of connectors
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