| Parameter | Reference | Type | Length | Default | Optional | Text |
|---|---|---|---|---|---|---|
| IM_DIRECT | UPS_C_DIRECT | C | 1 | ALE Distribution Packet: Distribution Direction | ||
| IM_MESCOD | UPS_C_MESCOD | C | 3 | 'MOD' | X | Activity of Object Validity Status |
| IM_OBJID | UPS_C_OBJID | C | 120 | ALE Distribution Packet : Object Key | ||
| IM_OBJVAL | UPS_C_OBJVAL | C | 20 | ALE Distribution Packet: Object Validity |