Promag TR515 User Manual page 20

Bell duration (register 01)
Set
Command C01,DD
Reply A
Get
Command B01
Reply ADDcc
DD- Bell duration in seconds, in Hex format (00H-FFH), cc- checksum
The TR515 features a relay that can be used for external bell control. Bell
schedule can be programmed using bell table registers (02H-21H, 22H-41H).
This register specifies the number of seconds the bell will be activated for each
time it is enabled.
Note: the DD parameter must always be a 2-digit number (i.e. "3A").
Supplying just one digit will generate error 04.
Bell table, times
Set
Command CRR,hhmm
Reply A
Get
BRR
Command
Reply Ahhmmcc
RR- register number in Hex form (02-21H), hh- hour, mm-minutes, cc-
checksum
The TR515 features a relay that can be used for external bell control. Up to
32 different ring times can be specified for which the bell will be activated. Each
bell table entry consists of two fields: time field (set through these 32 registers)
and a corresponding enable/disable field (set through registers 22H-41H).
TR515 User's Manual
18
Possible error codes: 04, 07
Possible error codes: 04, 07
Possible error codes:04, 07
Possible error codes: 04, 07