Brookfield Bath, Model TC-602 - Manual (Page 34)

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Data bits — 8
Parity — None
Stop bits — 1
Flow control — None
Baud rate — Selectable (Controller/PC baud rates must match), 57600 is recommended.
Communications Commands — Commands must be entered in the exact format shown. Do not
send a [LF] (line feed) after the [CR] (character return). Be sure to follow character case exactly.
A response must be received from the Controller before another command can be sent. All
responses are terminated with a single [CR], ASCII value = 13.
COMMAND FORMAT RESPONSE
Read current fluid temperature T{CR} Tttttuz{CR}
Read current set-point S{CR} Sssssuz{CR}
Change set-point RSssssu{CR} RSssssuz{CR}
Read remaining ramp time M{CR} Mmmmmz{CR}
Set ramp time RMmmmm{CR} RMmmmmz{CR}
Identifies Controller I{CR} Ixxxxxx{CR}
Illegal Command All illegal characters {CR} ?{CR}
Set RUN mode
1
RAz{CR} RA1{CR}
Set STANDBY mode RAz{CR} RA2{CR}
1. The controller does not begin controlling until it receives an RA1{CR} command. The controller may be
forced into only two states using the RA command, RA1{CR} and RA2{CR}.
Legend: ssss = setpoint (multiplied by 10), tttt = temperature (multiplied by 10), mmmm = ramp time in minutes
and tenths of minutes (multiplied by 10),
u = temperature units digit (F or C), xxxxxx = controller ID (TC-501 for
all models), z = controller status (1 or 2)
Controller Status [z]
1 - controller ON, in RUN mode
2 - controller OFF, in 'standby' mode
3 - no probe connected to controller
5 - temperature reading is above or below allowable limits
6 - temperature input value outside the allowable limits