Rexroth Tightening System 350 System Documentation - Rhino ...

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168/316 Bosch Rexroth AG | Tightening Technology 7 Data Services7.6 DeviceNet communicationNoteThis setting only reserves the storage space for the logical control signals (1 bit per input or output). Controlsignal assignment is done using the PLC assignment table.Receive dataInterfaceDetermines how many bytes should be reserved to receive the ID code (1 byte per character). The valuerange can be between 0 to 64 bytes.The interface is set as follows on delivery:– MAC ID (Media Access Code Identifier): 63– Baud rate: 125 kbit/sIf desired, you may set another MAC ID and select between 125, 250 or 500 kbit/s or Autodetection forthe data rate.Note MAC ID and data rate are determined during DeviceNet planning. The address section is from 0 to 63.The DeviceNet master (partner controller) is usually assigned the address 0 or 1.⇒After all the parameters have been set, click on Accept to assign the parameters.EDSThe DeviceNet configurator needs a participant profile in the form of an EDS (electronic data sheet) fileto commission the IMdev interface module. The EDS file enables the software to recognize the variableparameters and their value ranges.ExampleIf 16 I was selected as the number of I points and 32 O for the O points, 16 inputs (= 2 bytes) and32 outputs (= 4 bytes) will also be available in the EDS configurator.⇒After setting all the parameters, create the EDS file by clicking on Create EDS file.If a PLC assignment table has been created on the controller, the EDS file will also contain the names ofthe applied control signals. Import the data into the DeviceNet configurator.7.6.2.2 Sending the configuration to the tightening systemThe interface configuration is only valid after the settings have been sent to the tightening system.7.6.3 ID code transfer to the tightening system via DeviceNetThe ID code is transferred by the DeviceNet master to the data buffer of the DeviceNet interface as acharacter sequence (ASCII). An ID code of maximum 64 characters can be transferred per transmissioncycle.The ID code must be stored in the input data area 100 ms before the start of the tightening cycle (startof the tightening channel Ch x.y Cw or Ch x.y Ccw), so that it can be used in the next tightening.The ID code is taken over once the tightening channel has started (CH x.y CW, CH x.y CCW). The tighteningsystem evaluates the stipulated area for the ID code in the data buffer. Irrelevant characters in thestipulated buffer area must be filled up with spaces.System 350 | 3 608 878 040/05.2008
7 Data Services Tightening Technology | Bosch Rexroth AG 169/3167.6 DeviceNet communication7.6.4 Chronological sequence of ID code processingNoteAll chronological sequences are listed in chapter 6, “Control Signals” on page 55. In this chapter you canfind several examples for clarification of the function of DeviceNet communication.7.6.5 Troubleshooting for the DeviceNet connection7.6.5.1 Testing the connection to the partner controllerWith a configured IMdev interface module, a “No DeviceNet master” class 4 system error (self-acknowledged)will be output by the controller until the interface module is recognized by the master.The contents of the storage sections on the IMdev interface module can be displayed and analyzed viathe System test → DeviceNet data… function. You can thus check in the BS350 that an ID code hasbeen correctly transferred.The control signals transmitted via DeviceNet can be viewed under System test → I/O interface.The IMdev interface module contains a mod./net status LED on the front panel with the following signalingin accordance with the ODVA specification:When connecting thepower supplyDuring operationThe following sequence is used to check the proper function of the interface module.– 1/4 second red– 1/4 second greenIt is highly probable that the interface module is defective if this sequence fails while connecting power.Further information can be found in the BS350 operating system under System test → SE/CS errorlist… (see Table 7–46 on page 170 for error messages in connection with DeviceNet ).Table 7–44: Meaning of the LED NS (network status) displaysLED displayOffGreenFlashing green (1 Hz)RedFlashing red (1 Hz)MeaningAfter the device has been started and during the test for double MAC IDs; no power or connectionin the networkNetwork available, connection to master established, data exchange takes placeNetwork available, but no connection to master established; device waits for the master toset up a connectionError in the interface module, critical connection error, device has detected a network error(double MAC ID or bus off)Communication has failed, severe communication errorTable 7–45: Meaning of the LED MS (module status) displaysLED displayOffGreenFlashing green (1 Hz)RedFlashing red (1 Hz)MeaningNo powerReady for operationMissing or incomplete configurationThe IMdev interface module can only be made ready for operation through measures performedby the user.Fault is self-acknowledged after the IMdev interface module has remedied it.System 350 | 3 608 878 040/05.2008
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