Command/reference switching

Assigning control word bits

I/O profile

The I/O profile is extremely flexible in terms of assigning and switching the 16 control word bits.

To switch a control word bit using:

An input from the terminals

Or a control word bit from another communication channel

simply configure a switched assignment for the function input (CDpp), instead of a fixed assignment (Cppp).

Inputs and bits of the same order are switched.

Inputs LI1 to LI6 of the drive terminals can be used to switch control word bits 0 to 5.

With a logic I/O card using inputs LI7 to LI10, control word bits 6 to 9 can also be switched.

With an extended I/O card using inputs LI11 to LI14, control word bits 10 to 13 can also be switched.

Once a bit has been assigned to a switchable assignment, it can no longer be assigned to a fixed assignment, and vice versa. Example: Once a function input has been assigned to CD04, it cannot be assigned to LI5, C104, C204, C304 or C404.

Example

Function input A is always controlled by bit 1 of the CANopen control word.

Function input B is always controlled by input LI5 on the terminals.

Depending on the value of LI2, function input C is controlled:

Either by input LI3 on the terminals

Or by bit 2 of the CANopen control word

 

 

 

 

 

CANopen control word

 

 

 

bit 15

bit 14

bit 13

bit 12

bit 11

bit 10 bit 9 bit 8

bit 7 bit 6 bit 5

bit 4

bit 3

bit 2

Terminals

LI14

LI13

 

LI12

LI11

LI10

LI9

 

LI8

LI7

LI6

LI5

 

LI4

LI3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bit 1

bit 0

 

 

C201

Cd02

Command switching

CCS

CANopen

Terminals

LI2

LI1

LI2

 

 

 

 

 

 

 

 

 

 

 

 

Function

A

C

LI5

B

41

Page 41
Image 41
Schneider Electric 61 user manual Assigning control word bits, Example