MODBUS.PIN

Description

MODBUS.PIN and MODBUS.POUT are used to apply user specified units to the feedback values retrieved over Modbus.

To use this parameter correctly, first the MODBUS.PSCALE must be known, this value determines the resolution per revolution of the motor for Modbus. Then the ratio of MODBUS.POUT/MODBUS.PIN is applied to convert counts/rev into User Units/rev.

Example

Use Modbus Scaling to return feedback in Radians

MODBUS.PSCALE = 16 (65536 counts/rev or pole pitch)
MODBUS.PIN = 5215189
MODBUS.POUT = 500000

If the motor is currently resting with a Modbus raw position 36,462 Counts (MODBUS.PSCALE is set to return 65,536 per rev) andthe user requests the position using PL.FB over Modbus, the position will be returned as:

36,462 * 500000 / 5215189 = 3495 (Radians * 1000)

Which equals 3.495 Radians

General Information

Type

NV

Units

N/A

Range

1 to 4294967295

Default Value

1

Data Type

Integer

Start Version

M_01-04-00-000

Variants Supported

Variant Supported
AKD Base Yes
AKD with Position Indexer Yes
AKD EtherCAT Yes
AKD CANopen Yes
AKD BASIC Yes
AKD SynqNet Yes*
AKD EtherNet/IP Yes
AKD PROFINET No
AKD Sercos® III Yes
AKD-N No
AKD-C No

*In SynqNet, a parameter may be available in the firmware but have no effect on the system. See SynqNet Supported Parameters.

Fieldbus Information

If your drive type is listed as supported but no index, address, or instance number is listed, then this parameter is accessible through WorkBench, but not over your fieldbus type. For information on SynqNet parameters see SynqNet Supported Parameters.

EtherCAT CoE and CANopen
Index/Subindex Object Start Version

51E7h /0

M_01-04-00-000
Sercos® III
Address Attributes Signed?
2487 4 Octets No
EtherNet/IP
Instance Data Size Data Type
488 4 Byte Integer
Modbus
Register Address Is 64 bit? Attributes Signed?

974

No 32 bit No

Related Topics

MODBUS.PSCALE

MODBUS.POUT