Graco 24P822 important safety instructions Appendix a Modbus Variable Map, Modbus Registers

Appendix A - Modbus Variable Map

Appendix A - Modbus Variable Map

To communicate through fiber optics with the E-Flo DC Control Module, reference the appropriate hardware as shown in manual 332356. That manual indicates various options for connecting fiber optic cables from the control module to the non-hazardous area. The following table lists Modbus registers available to a PC or PLC located in the non-hazardous area.

Table 4 Modbus Registers

Table 4 shows the registers needed for basic operation, monitoring, and alarm control features. Tables 5 and 6 provide bit definitions as needed for certain registers. Table 7 shows the units and how to convert the register value to a unit value.

Reference the Modbus communication settings selected in Setup Screen 12, page 26.

Modbus	Variable	Register	Size	Notes/Units
Register		Access
404100	Pump Status Bits	Read Only	16 Bit	See Table 5 for bit definitions.
404101	Actual Pump Speed	Read Only	16 Bit	Speed units, see Table 7.
404102	Actual Pump Flow Rate	Read Only	16 Bit	Flow units, see Table 7..
404103	Actual Pump Pressure	Read Only	16 Bit	Percent pressure, see Table 7.
404104	Transducer 1 Pressure	Read Only	16 Bit	Pressure units, see Table 7.
404105	Transducer 2 Pressure	Read Only	16 Bit	Pressure units, see Table 7.
404106	Batch Total High Word	Read Only	16 Bit	Volume units, see Table 7.
404107	Batch Total Low Word	Read Only	16 Bit	Volume units, see Table 7.
404108	Grand Total High Word	Read Only	16 Bit	Pump cycles, see Table 7.
404109	Grand Total Low Word	Read Only	16 Bit	Pump cycles, see Table 7.
404110	Maintenance Total High Word	Read Only	16 Bit	Pump cycles, see Table 7.
404111	Maintenance Total Low Word	Read Only	16 Bit	Pump cycles, see Table 7.
404112	Pump Alarms High Word	Read Only	16 Bit	See Table 5 for bit definitions.
404113	Pump Alarms Low Word	Read Only	16 Bit	See Table 5 for bit definitions.
404114	Display Alarms High Word	Read Only	16 Bit	See Table 5 for bit definitions.
404115	Display Alarms Low Word	Read Only	16 Bit	See Table 5 for bit definitions.
404200	Local/Remote Control	Read / Write	16 Bit	0 = local, 1 = remote/PLC
404201	Active Profile Number	Read / Write	16 Bit	0 = stopped, 1, 2, 3, 4
404202	Pump Control Bitfield	Read / Write	16 Bit	See Table 5 for bit definitions.
404203	Maintenance Interval High Word	Read / Write	16 Bit	Pump cycles, see Table 7.
404204	Maintenance Interval Low Word	Read / Write	16 Bit	Pump cycles, see Table 7.
403102	Display seconds	Read Only	16 Bit	Use as heartbeat.

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