
TPU2000/2000R Modbus/Modbus Plus Automation Guide
149
A Truth Table for the aforementioned bits follows as illustrated in Table 5-48:
Table 5-48. State Truth Chart for Physical Input Forcing Function
Bit Value
Change Mask
Register 41434
and 41435
Bit Value
Normal/Forced
Mask Register
41436 and 41437
Bit Value
Forced State
Register 41438
and 41439
Description
0
X
X
Normal - State Unforced
1
0
X
Normal - State Unforced
1
1
0
Logical Input Forced – State = OFF
1
1
1
Logical Input Forced – State = ON
Note: X = Don’t Care State
. There are three modes which a Physical Output may be placed:
•
UNFORCED – The TPU2000/TPU2000R Logical Input is not forced to any state.
•
FORCED ON – The TPU2000/TPU2000R Logical Input is energized and associated mapped function
is enabled. The Logical Input status is reported as a 1. If the point status is viewed via ECP or
WinECP, the Logical point will show a forced status with a logical state of 1.
•
FORCED OFF – The TPU2000/TPU2000R Logical Input is de-energized. The Logical Input status is
reported as a 0. If the point status is viewed via ECP or WinECP, the point will show a forced status
with a logical state of 0.
Table 5-49. TPU2000 and TPU2000R Bit Control Function Definitions
Register Item
Description
GROUP IV
41430 Execute
Register
0 = No Action
1 = Execute
Unsigned (16 Bits)
41431
Password
ASCII – 2 Characters Leftmost Digits
41432
Password
ASCII – 2 Characters Rightmost Digits
41433 Spare
41434
Force Logical Input Change Mask
FLI 17 to FLI 32
Unsigned (16 Bits)
1 = Control Bit State 0 = No Control
Bit 0 FLI 17(lsb)
1 = Control Bit State 0 = No Control
Bit 1 FLI 18
1 = Control Bit State 0 = No Control
Bit 2 FLI 19
1 = Control Bit State 0 = No Control
Bit 3 FLI 20
1 = Control Bit State 0 = No Control
Bit 4 FLI 21
1 = Control Bit State 0 = No Control
Bit 5 FLI 22
1 = Control Bit State 0 = No Control
Bit 6 FLI 23
1 = Control Bit State 0 = No Control
Bit 7 FLI 24
1 = Control Bit State 0 = No Control
Bit 8 FLI 25
1 = Control Bit State 0 = No Control
Bit 9 FLI 26
1 = Control Bit State 0 = No Control
Bit 10 FLI 27
1 = Control Bit State 0 = No Control
Bit 11 FLI 28
1 = Control Bit State 0 = No Control
Bit 12 FLI 29
1 = Control Bit State 0 = No Control
Bit 13 FLI 30
1 = Control Bit State 0 = No Control
Bit 14 FLI 31
1 = Control Bit State 0 = No Control
Bit 15 FLI 32 (msb)
1 = Control Bit State 0 = No Control
41435
Force Logical Input Change Mask
FLI 01 to FLI 16
Unsigned (16 Bits)
1 = Control Bit State 0 = No Control
Bit 0 FLI 01(lsb)
1 = Control Bit State 0 = No Control
Bit 1 FLI 02
1 = Control Bit State 0 = No Control
Summary of Contents for TPU2000
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