
Chapter 7: Enabling and Using HART on the 1769sc-OF4IH
User’s Manual 0300217-03 Rev. A
7-7
Table 7-3 (HART Packet 2)
Tag Name Data Type
Style
Description
If4ih0Packet2 Packet2[4,1] NA Two dimensional array containing
packet 2 data for all 4 channels.
If4ih0Packet2[X,0]
1
Packet2 NA Packet 2 data for channel X
If4ih0Packet2[X,0].HartChannelID INT BIN
Bits 0 to 3: Channel number (0 – 3).
Bit 4: Searching/Initializing HART device
Bit 5: HART communication failure or
device not found
Bit 6: Pass-through message pending
(ready)
Bit 7: Unused (0)
Bits 8 to 10: Packet ID
Bit 11 through 15: Unused
If4ih0Packet2[X,0].Slot0Data REAL Float
Variable for slot 0
If4ih0Packet2[X,0].Slot1Data REAL Float
Variable for slot 1
If4ih0Packet2[X,0].Slot2Data REAL Float
Variable for slot 2
If4ih0Packet2[X,0].Slot3Data REAL Float
Variable for slot 3
If4ih0Packet2[X,0].Slot0Units SINT DEC
Slot 0 units code
If4ih0Packet2[X,0].Slot1Units SINT DEC
Slot 1 units code
If4ih0Packet2[X,0].Slot2Units SINT DEC
Slot 2 units code
If4ih0Packet2[X,0].Slot3Units SINT DEC
Slot 3 units code
If4ih0Packet2[X,0].Slot0Assignment SINT DEC
Slot 0 variable code
If4ih0Packet2[X,0].Slot1Assignment SINT DEC
Slot 1 variable code
If4ih0Packet2[X,0].Slot2Assignment SINT DEC
Slot 2 variable code
If4ih0Packet2[X,0].Slot3Assignment SINT DEC
Slot 3 variable code
If4ih0Packet2[X,0].Pad SINT[12] DEC
Packet pad
1
X represents the module channel number (0 to 3)
Table 7-4 (HART Packet 3)
Tag Name Data Type
Style
Description
If4ih0Packet3 Packet3[4,1] NA Two dimensional array containing
packet 3 data for all 4 channels.
If4ih0Packet3[X,0]
1
Packet3 NA Packet 3 data for channel X
If4ih0Packet3[X,0].HartChannelID INT BIN
Bits 0 to 3: Channel number (0 – 3).
Bit 4: Searching/Initializing HART device
Bit 5: HART communication failure or
device not found
Bit 6: Pass-through message pending
(ready)
Bit 7: Unused (0)
Bits 8 to 10: Packet ID
Bit 11 through 15: Unused
If4ih0Packet3[X,0].Message SINT[32] ASCII
32 character message
If4ih0Packet3[X,0].Pad SINT[4] DEC
Pad 32 bit alignment.
1
X represents the module channel number (0 to 3)
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