Contents
GFK-2222AD April 2018 vii
Figure 50: RTU Read Output Table Example _______________________________________________________ 230
Figure 51: CRC Register Operation ______________________________________________________________ 232
Figure 52: RTU Read Output Table Message Format ________________________________________________ 236
Figure 53: RTU Read Input Table Message Format _________________________________________________ 237
Figure 54: RTU Read Registers Message Format ___________________________________________________ 238
Figure 55: RTU Read Analog Inputs Message Format _______________________________________________ 239
Figure 56: RTU Force Single Output Message Format _______________________________________________ 240
Figure 57: RTU Preset Single Register Message Format _____________________________________________ 241
Figure 58: RTU Read Exception Status Message Format _____________________________________________ 242
Figure 59: RTU Loopback/Maintenance Message Format ____________________________________________ 243
Figure 60: RTU Force Multiple Outputs Message Format ____________________________________________ 245
Figure 61: RTU Preset Multiple Registers Message Format ___________________________________________ 246
Figure 62: RTU Report Device Type Message Format _______________________________________________ 247
Figure 63: RTU Read Scratch Pad Memory Message Format _________________________________________ 251
Figure 64: RTU Error Response Format ___________________________________________________________ 253
Figure 65: Interrupt Execution Considerations _____________________________________________________ 298