MODBUS TCP
QB Expert Alpha Controller
148
6.13.1 Example Map
Here is an example of mapping addresses between an external PLC and the Alpha controller after the I/O functions
have been assigned in the Alpha controller.
Controller Inputs
External PLC
Alpha Controller
Address
#
Modbus Input*
Assigned Function
Length (Bits)
30001:0
0/0
Start
1
30001:1
0/1
Stop
1
30001:2
0/2
Reverse
1
30001:3
0/3
Job Select (Bit) 0
1
30001:4
0/4
Job Select (Bit) 1
1
30001:5
0/5
Job Select (Bit) 2
1
30001:6, 7
0/6
Ignored
2
30001:8 - 15
1/0
Ignored
8
30002
2/0
Part ID (ASCII)
80
#
Register:Bit
*Byte/Bit
Integer, Float and ASCII data must start on a zero (first) bit of a byte and not in the middle of a byte. Function
code 03 (0x03) can only transmit a 16-bit register, not the individual bits within a register. The PLC will need to
send the 16-bit register and the Alpha controller will parse the individual bits after receipt.
Controller Outputs
External PLC
Alpha Controller
Address
#
Modbus Output*
Assigned Function
Length (Bits)
40001:0
0/0
Fault
1
40001:1
0/1
Ready
1
40001:2
0/2
Tool Running
1
40001:3
0/3
In Cycle
1
40001:4
0/4
Cycle OK
1
40001:5
0/5
Cycle NOK
1
40001:6, 7
0/6
Not Used
2
40001:8 -15
1/0
Not Used
8
40002
2/0
Torque (Float)
32
40004
6/0
Angle (Float)
32
#
Register:Bit
*Byte/Bit
Integer, Float and ASCII data must start on a zero (first) bit of a byte and not in the middle of a byte. Function
code 04 (0x04) can only transmit a 16-bit register, not the individual bits within a register. The PLC will need to
capture the 16-bit register and then parse the individual bits after receipt.
Содержание QB Expert
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Страница 37: ...3 QB Expert Alpha Controller Programming SETUP Area SERVICE Area ANALYZE Area ...
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Страница 133: ...Controller Connections Instruction Manual 125 Outputs Sourcing example ...
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Страница 177: ...8 QB Expert Alpha Controller Multiple Spindle Connection Disconnect Synchronization Networking ...
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