9 Connecting to Allen-Bradley (Rockwell) PLC
9-14
NB-series Programmable Terminals Host Connection Manual (V108)
9-4 Supported Registers
FFF refers to the File Number and DDD refers to the Variable No. Address.
AB SLC500/MicroLogix Series (DF1) Driver
Note 1 The format of I/O address for bit register is “I/O e.s/b”, where, “e” is the slot number, “s” is the pixel number,
and “b” is the bit number. If the address in PLC is O0 0.0/11, then the address in PT should be set to “O0
0.11”; and if the address in PLC is O0 0.1/8, then the address in PT should be set to “O0 1.8”. When AB with
the different CPU types uses the I/O modules, the addresses of I point and O point in PT are arranged con-
secutively. Take Micrologix1400 with output module 1762-OW16 as example, the address corresponding
to O0 1.0/3 in PT is O0 6.3.
2 When the address is less than three digits, it should be filled with 0 to be three digits.
Example: When 113 refer to File number 113 and 10.12 refers to Address 10.12, specify to 113010.12
Device Bit Address Word Address Format Notes
Internal Auxiliary Nodes B3: 0.0~255.15 ------ DDD.DD
Internal Auxiliary Nodes B10: 0.0~255.15 ------ DDD.DD
Internal Auxiliary Nodes B11: 0.0~255.15 ------ DDD.DD
Internal Auxiliary Nodes B12: 0.0~255.15 ------ DDD.DD
Internal Auxiliary Nodes B13: 0.0~255.15 ------ DDD.DD
Internal Auxiliary Nodes Bf:n 0.0~255255.15 ------ FFFDDD.DD *2
External Input Nodes I1: 0.0~255.15 ------ DDD.DD
External Output Nodes O0: 0.0~255.15 ------ DDD.DD
Data Registers ------ N7: 0~255 DDD
Data Registers ------ N10: 0~255 DDD
Data Registers ------ N11: 0~255 DDD
Data Registers ------ N12: 0~255 DDD
Data Registers ------ N13: 0~255 DDD
Data Registers ------ N14: 0~255 DDD
Data Registers ------ N15: 0~255 DDD
Data Registers ------ Nf:n 0~255255 FFFDDD *2
Floating-point Data Registers ------ F8: 0~255 DDD
Actual Value Registers for
Counter
------ C5PV: 0~255 DDD
Setting Value Register for Counter ------ C5SV: 0~255 DDD
Actual Value Registers for Timer ------ T4PV: 0~255 DDD
Setting Value Registers for Timer ------ T4SV: 0~255 DDD
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