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GF Piping Systems

Instruction manual

Modbus RTU Interface board for

Electric Actuators Type EA25 - EA250

700278135
MA_00044_EN_1a (08.20)
© Georg Fischer Piping Systems Ltd
8201 Schaffhausen/Schweiz, 2020

Содержание Modbus RTU

Страница 1: ...N OFF GF Piping Systems Instruction manual Modbus RTU Interface board for Electric Actuators Type EA25 EA250 700278135 MA_00044_EN_1a 08 20 Georg Fischer Piping Systems Ltd 8201 Schaffhausen Schweiz 2020 ...

Страница 2: ... symbols and labels 4 2 3 Other applicable documents 4 2 4 Abbreviations 4 3 Safety information 5 4 Modbus RTU board installation 6 5 Modbus RTU interface description 8 5 1 Introduction 8 5 2 Supported Function Codes 8 5 3 Slave Address 8 5 4 Modbus Register Map 9 5 5 Modbus board configuration 15 ...

Страница 3: ...ties nor a guaranteed durability They are subject to modification Our General Terms of Sale apply Observe instruction manual The instruction manual is part of the product and an important element within the safety concept Read and observe instruction manual Always have instruction manual available by the product Give instruction manual to all subsequent users of the product ...

Страница 4: ...shall warn you of death injuries or mate rial damage Always read and observe these warnings CAUTION Dangerous situation Non observance may result in minor injuries Measures to avoid the danger 2 2 Further symbols and labels Symbol Meaning 1 Call for action in a certain order Here you have to do something Call for action Here you have to do something 2 3 Other applicable documents Planning Fundamen...

Страница 5: ...d stored with care Please note the following points Protect the product against external forces during transport impacts knocks vibrations etc Transport and or store the product in its unopened original packaging Protect the product from heat humidity dust dirt moisture as well as heat and ultraviolet radiation Ensure that the product is not damaged either by mechanical or thermal influences Befor...

Страница 6: ... supply CAUTION Caution when handling the board Electrostatic discharge can damage the components Do not touch the conductive parts of the board Step Process Picture 1 Disconnect the actuator from the power supply 2 Remove the electric actuators housing cover by loosen the 4 Torx screws 3 Remove the plug cover on the right side Mount the delivered cable union together with the flat gasket at this ...

Страница 7: ...able has to be secured against movement with the safety cap fastenings Cable specification Solid wire 26 16 AWG 0 129 1 31 mm2 Stranded wire 26 16 AWG 0 129 1 31 mm2 Torque 3 0 Lb In 0 34 Nm Wire stripe length 6 7 mm COM D0 D1 COM D0 D1 COM D0 D1 6 Set the termination switch located at the Modbus RTU board to ON for the last actuator in the Modbus network or if there is only one actuator in the ne...

Страница 8: ...ctions see chapter Modbus Regis ter Map You need physical access to the baseboard and Modbus board only for Installing the Modbus board on the actuators baseboard and wire the RS 485 cables Setting of the termination switch S1 on the Modbus board Resetting the EA baseboard and Modbus board to factory defaults Viewing the diagnosis LEDs on the Modbus board or failure codes on the 7 segment display ...

Страница 9: ... WR UINT8 Position setpoint in percent BCDSET 10 0x000C 1 RD WR UINT16 Settings for cycle time extension cycle time monitoring and current monitoring NSIGACT 11 0x000D 1 RD WR UINT8 Action on loss of signal NSIGWDG 12 0x000E 1 RD WR UINT16 Loss of signal watchdog time Remarks BCDSET NSIGACT and NSIGWDG register settings are stored nonvolatile This means After changing one of these registers a Powe...

Страница 10: ...CURRENT The CURRENT word holds the absolute value of motor current in milliamps Word Name CURRENT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 motor_current motor_current Absolute value of motor current in milliamps 5 4 6 TEMP Temperature measured on EA Baseboard Byte Name TEMP Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 temperature_base temperature_base Temperature in DEG Celsius 20 100 C 5 4 7 CYCL...

Страница 11: ...accessory option board no answer communication timed out seven segment 9 8 powerfail_action Powerfail board is in active state 9 powerfail_accu_lvl_warn power fail intern accu level warning seven segment L 10 powerfail_accu_defect power fail intern accu defect error seven segment A 11 watchdog_recovery Restart of EA through watchdog timer warning 12 Motor current overflow max motor current monitor...

Страница 12: ...sitioner mode is enabled see register EACON Byte Name POSSET Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Action position_setpoint in percent 0 100 active if positioner is enabled 0 100 setpoint range 0 closed position 100 open position 101 255 invalid value no action 5 4 12 BCDSET This setting reproduces the functionality of the monitoring board hardware Note that the Bytes BCDSET0 and BCDSET1...

Страница 13: ...oning time until target position is reached This setting is dependent on EA type same as setting on monitoring board 5 4 14 BCDSET1 The Bit numbering refers to the BCDSET1 Byte since this is the High Byte of the 16 Bit BCDSET Register The corresponding bit numbers in BCDSET Register are from 8 to 15 The lower nibble of BCDSET1 contains the setting for the current monitoring functionality The high ...

Страница 14: ...3 reserved If the MODBUS signal is lost the EA performs the selected signal_loss_action 5 4 16 NSIGWDG It is possible to configure a maximal time without telegrams from the master before the Modbus board triggers the configured signal loss action busfault reaction By default no timeout is set Register NSIGWDG holds the signal loss watchdog time in milliseconds 0 Watchdog disabled default setting 1...

Страница 15: ... STOPBIT 4 0x232C 1 RD WR 1 UINT8 1 STOP_1 2 STOP_2 Remarks Changing of a parameter is only possible if the new value is in the allowed range see descrip tion These registers are non volatile For the new settings to become effective a reset Power cycle the EA is required Note the address gap between the board configuration registers and normal operation registers Register 49001 refers to register ...

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