dunfoss

heres how i do it with a danfoss.

Mapping danfoss data in;

L #Address; // Grab address reference (start address of the VLT)
SLW 3;
LAR1 ;
L PIW [AR1,P#0.0]; //pass in status word
T #TEMP1;
L PIW [AR1,P#4.0]; //pass in PCD 3
T #TEMP2;

A L 0.3;
= #Running; //Set running status
A L 3.4; // check FC300 input status at terminal 29
= #Term_29;
A L 3.5; // check FC300 input status at terminal 27
= #Term_27;
A L 3.6; // check FC300 input status at terminal 19
= #Term_19;
A L 3.7; // check FC300 input status at terminal 18
= #Term_18;

Writing data to danfoss

NETWORK
TITLE = Write FCD Data

L W#16#43C; // prepare control word for stop mode
T #TEMP1; //(temp 1 is at mem position 0)
A #Relay01; //map in value
= L 0.3;
A #Reverse; //map in value
= L 0.7;
A #Go_Drive; //map in value
= L 1.6;
L #TEMP1;
T PQW [AR1,P#0.0]; //control word

L #Speed_out;
T PQW [AR1,P#2.0]; // Output speed

this can be set up in a FB or FC and via the declarations may be called for as many drives at once, ive hade 500 running in one PLC no probs, has a very low overhead.