Specifications

M1 Control RS-232 ASCII String Protocol Page 7 of 68 Rev. 1.79 July 16, 2009
ss –Request System Trouble Status
SS – System Trouble Status data
st – Request temperature
ST – Temperature report data
sw – Speak word
t2 – Request Omnistat 2 data
T2 – Reply Omnistat 2 data
TC – Task change update
tn – Task activation
tr – Request thermostat data
TR – Thermostat data report
ts – Set thermostat data
ua – Request user code areas
UA – User code areas report data
vn – request Version Number of M1
VN – Reply Version Number of M1
XB – reserved by ELKRP
xk – Reply from Ethernet test
XK – Request Ethernet test
zb – Zone bypass request
ZB – Zone bypass report data
ZC – Zone change update
zd – Request zone definition data
ZD – Zone definition report data
zp – Zone partition request
ZP – Zone partition report data
zs – Zone status request
ZS – Zone status report data
zv –Request Zone analog voltage
ZV – Zone analog voltage data
Revision History:
Rev. 0.1 - 1/13/04 – Changed Task Number ASCII reply from 2 digits to 3 digits and changed
command from “R” to “T”.
Rev. 0.2 – 2/17/04 – Added Keypad key pressed ASCII transmission.
Rev. 0.3 – 3/23/04 – Changed Tasks from a state on/off to a one-shot button.
Rev. 1.1 – 3/24/04 – Removed ON/OFF Task commands.
Rev. 1.2 – 3/25/04 – Added Request ASCII Names to protocol.
Rev. 1.3 – 3/29/04 – Added Request Temperatures
Rev. 1.4 – 3/30/04 – Added Keypad Key Change, word and phrase table to specification.
Rev. 1.5 – 4/15/04 – Added Read and Write Custom Values to protocol.
Rev. 1.6 – 6/07/04 – Added note about high bit of ASCII names may be set to indicate “Show On
Keypad”.
Rev. 1.7 – 6/15/04 – Added Request for User Code valid areas.
Rev. 1.8 – 6/28/04 – Task Change typo - Command from RC to TC, status byte set to 0.
Rev. 1.9 – 7/12/04 – Added All_Lights_On, All_Lights_Off, All_Units_Off to PLC Update for
Serial Port Expander and Zensys
Rev. 1.10 – 7/16/04 – Request and return for what area a keypad is valid in, ability to activate
keypad function key, ability to bypass a zone.
Rev. 1.11 – 7/19/04 – Added Request Function Key names, Request Keypad Areas, Activate
Keypad function keys, bypass a zone, send arming status on keypad
arm/disarm.
Rev. 1.12 – 8/4/04 – Changed Zone Temperature Probe subtract value to 60 from 40.
Rev. 1.14 - 8/6/04 – Document correction in Log Data command, changed NQ to LD.
Added PLC Status example.
Rev. 1.15 – 8/20/04 – Added ASCII Thermostat control.