Rs-232 communications protocol & command set – Panamax BANKS WIRING MB1000 User Manual
Page 10
8
Communications Protocol
Connector Pin-out:
Pin 2, Transmit. The MB1000 transmits data on this pin.
Pin 3, Receive. The MB1000 receives data on this pin.
Pin 5, SG (signal ground).
Baud Rate:
2400bps
Start Bits:
1
Data Bits:
8
Stop Bits:
1
Parity:
None
Flow Control:
None
Controller Commands
Commands and responses are in the form of ASCII character
strings terminated with a carriage return
13 (hex).
If the state variable LINEFEED MODE = ON, a linefeed charac-
ter (
Incoming messages (to the MB1000) shall be terminated with
one of the following characters: NUL (00h, 00d),
carriage return (
The MB1000 shall discard the incoming message under the fol-
lowing conditions:
The message overruns the receiver buffer (32 characters).
No terminating character (NUL,
500ms of receipt of the last character.
The following are commands sent by the controlling equipment
to the MB1000.
Note: Responses are only transmitted if unsolicited feedback is
enabled (!SET_FEEDBACK)
ALL ON
Turns on all outlets. Turn on is immediate with no delay.
Send to UPS:
!ALL_ON
_____________________________________________
If power is not switched off due to low battery conditions:
Action:
Turn on Outlet Bank 1
Response from UPS:
$BANK 1 = ON
_____________________________________________
If UPS battery level > Shutoff Threshold
Action:
Turn on Outlet Bank 2
Response from UPS:
$BANK 2 = ON
_____________________________________________
If UPS battery level < Shutoff Threshold
Action:
Turn off Outlet Bank 2
Response from UPS:
$BANK 2 = OFF
$BATTERY = charge%
_____________________________________________
Action:
Activate Power Button
Response from UPS:
$BUTTON = ON
_____________________________________________
ALL OFF
Turns off all outlets. Turn off is immediate with no delay.
Send to UPS:
!ALL_OFF
Action:
All outlets will turn off
Response from UPS:
$BANK 1 = OFF
Response from UPS:
$BANK 2 = OFF
Response from UPS:
$BUTTON = OFF
RS-232 Communications Protocol & Command Set
Pin 2 -Transmit
Pin 3 - Receive
Pin 3 - Receive
Pin 2 -Transmit
1
6
2
7
3
8
4
9
5
1
6
2
7
3
8
4
9
5
Pin 5 - Signal Ground
RS232 Pin-out