Boeing Glass Cockpit display brightness

Hello

Please I need some help about SIOC script.
I am trying to dim my MIP display and I don´t know how to write using different bytes.
Dimmer Implemented Boeing Glass Cockpit display brightness, Bytes
0 - Captain PFD
1 - Captain ND
2 - Upper ECAM
3 - Lower ECAM
4 - F/O ND
5 - F/O PFD
This SIOC example below works fine to dim PDF display but I could not set for the others.
How to write this setting using different bytes.
Thanks

Cesar

Var 0001, Link FSUIPC_INOUT, Offset $55F0, Length 4
Var 0002, Link IOCARD_ENCODER, Input 20, Aceleration 1, Type 2
{
L0 = V0002 * 1
V0001 = LIMIT 1 ,100 ,L0
}