Filter
Top Products
G7 ASD Multi-Protocol Communication Option and PG Feedback Option Manual
39
10.2.4 ASD Scan Registers
Although all available ASD command, status and configuration data is accessible via the Modbus
interface, there are certain fundamental command and status registers that virtually all applications will
likely find useful. These fundamental registers will probably be accessed quite frequently, and “priority
handling” of these select registers would therefore benefit network throughput.
For this reason, certain ASD registers can be configured for special handling, which provides very fast
access response. These registers are referred to as “scan registers”. The Multicom Modbus interface
provides three types of scan registers:
1. Fixed (read or write)
2. Configurable read/status
3. Configurable write/command
The fixed scan registers listed in Table 20. These registers provide fast response to the indicated read or
write request at all times.
Table 20: Fixed Scan Registers
ASD
Register
Modbus Register
Read /
Write
Function
0xFA06 0x0A07 (2567
10
) Write Basic command
0xFA23 0x0A24 (2596
10
) Write Extended command
0xFA07 0x0A08 (2568
10
) Write Option board frequency command
0xFE58 0x0E59 (3673
10
) Read Output frequency
Table 21 provides a list of the available read/status scan selections. These are selectable via drive
parameters F841-F846, which allows a total of six read scan registers to be configured.
Table 21: Drive Status Scan Data
F841~F846
Setting
Function
ASD
Register
Modbus Register
0 No selection N/A N/A
1 Alarm code monitor 0xFC91 0x0C92 (3218
10
)
2 Output frequency 0xFE58 0x0E59 (3673
10
)
3 Real-time speed feedback 0xFE61 0x0E62 (3682
10
)
4 Filtered speed feedback 0xFE62 0x0E63 (3683
10
)
5 Internal torque reference 0xFE56 0x0E57 (3671
10
)
6 Output current 0xFE03 0x0E04 (3588
10
)
7 Excitation current 0xFE21 0x0E22 (3618
10
)
8 Torque current 0xFE20 0x0E21 (3617
10
)
9 Overload value 0xFE59 0x0E5A (3674
10
)
10 Accel / Decel torque reduction 0xFE60 0x0E61 (3681
10
)
11 Motor counter data 0xFE33 0x0E34 (3636
10
)
12 Fault code 0xFC90 0x0C91 (3217
10
)
13 Input terminal 0xFE06 0x0E07 (3591
10
)
14 VI input 0xFE36 0x0E37 (3639
10
)
15 RR input 0xFE35 0x0E36 (3638
10
)
16 RX input 0xFE37 0x0E38 (3640
10
)