Grass Valley Switcher Products - Manual (Page 126)

126 Switcher Products — Protocols Manual
Section 4 — DPM CPL Protocol
Example 7
DPM -> Switcher, ISSUE
00 01; Version
00 10; Msg token, ISSUE
00 00; Return Id
00 20; Data Size
00 00 00 31; Header checksum
00 00; Rqst Id
00 00; Serial Number
00 03; Service Id, PARAMETER_SERVICE
00 00; padding
03 95; Param Id, PID_SYSTEM_NAME
00 00; padding
00 00 00 00; Device, EFFECT_MANAGER
16-byte system name in ASCII
Example 8
Switcher -> DPM, SUBSCRIBE to more than one Param Id in one message
00 01; Version
00 08; Msg token, SUBSCRIBE
00 00; Return Id
00 28; Data Size
00 00 00 31; Header checksum
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ; 16 bytes rqstAddr
00 01; Rqst Id
00 00; Serial number
00 03; Service Id, PARAMETER_SERVICE
00 00; flags, APPEND_SERVICE
03 33; Param Id, PID_VIDEO_ON_AIR
00 00; padding
00 00 00 FF; Device, 8 channels
03 34; Param Id, PID_KEY_ON_AIR
00 00; padding
00 00 00 FF; Device, 8 channels