ezeio2:scriptref:start

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ezeio2:scriptref:start [2019-11-19 01:51] – andrehezeio2:scriptref:start [2020-05-01 15:10] – andreh
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 Although the user script runs in a sandboxed runtime engine, the recommended programming pattern is similar to [[https://en.wikipedia.org/wiki/Cooperative_multitasking|cooperative multitasking]]. Although the user script runs in a sandboxed runtime engine, the recommended programming pattern is similar to [[https://en.wikipedia.org/wiki/Cooperative_multitasking|cooperative multitasking]].
  
-This means that you should avoid long-running loops, and instead make use of blocking calls or system callbacks provided in the function library. +This means that you should avoid long-running loops, and instead make use of system callbacks provided in the function library.
- +
-The following calls are blocking and are allowed in 'superloops': +
- +
-| ''ModbusRead()'' | Read a register block from a Modbus RTU device | +
-| ''RS485WriteRead()'' | Write & Read to the Modbus port in 'raw' mode (not Modbus protocol) | +
-| ''ModbusWriteRead()'' | Write and read Modbus commands on the RTU port | +
-| ''SDICmd()'' | Send a SDI12 command and receive the response | +
-| ''ModbusTCP()'' | Send & Receive Modbus commands on the Ethernet port | +
-| ''sleep()'' | Suspend the script for a short time (process events immediately) | +
-| ''MBRTU_Read()'' | Read a register from a Modbus RTU device | +
-| ''MBRTU_Write()'' | Write to a register on a Modbus RTU device | +
-| ''MBTCP_Read()'' | Read a register from a Modbus TCP device | +
-| ''MBTCP_Write()'' | Write to a register on a ModbusTCP device | +
-| ''SunSpecIP_Base()'' | Find the base address for a SunSpec/TCP device | +
-| ''SunSpecIP_Ofs()'' | Find the offset for a SunSpec/TCP device | +
  
 The following system callback functions are defined: The following system callback functions are defined:
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 | ''@Key'' | Called when a button is pressed on a connected terminal device | | ''@Key'' | Called when a button is pressed on a connected terminal device |
 | ''@Scan'' | Called when a code is received from a scanner device | | ''@Scan'' | Called when a code is received from a scanner device |
-| ''@J1939'' | Called when a J1939 packet is received | 
  
 === State machines === === State machines ===
  • ezeio2/scriptref/start.txt
  • Last modified: 2024-03-01 17:24
  • by andreh