Ultima MOS-5 Detector
44
Byte Function Bit Position Access
High Not Used 15 MSB Read
Not Used 14 Read
Not Used 13 Read
Not Used 12 Read
Not Used 11 Read
Not Used 10 Read
Latching/Non-Latching 9 R/W
Energized/De-Energized 8 R/W
Low Set point (7-0) R/W
8.8.14 Warn Settings (0EH)
A read returns the present warn settings of the Ultima MOS-5 Intelligent Sensor. A write
command changes the settings to the requested values. The set points are programmable in
5% FS steps (1% FS steps for 20 ppm range).
NOTE: The maximum alarm setting for the Ultima MOS-5 Intelligent Sensor is 60% LEL.
A “1” in the 9
th
bit position means the output is latching, a “0” means it is non-latching. A “1” in
the 8
th
bit position means the output is normally energized a “0” means it is normally de-
energized. The warn set point cannot be set above the alarm set point.
Factory default is 30% FS, non-latching, de-energized. The maximum allowable set
point is 50 ppm.
Exception: Returns an Exception Code 01 (illegal function) if an illegal write is requested.
Byte Function Bit Position Access
High Not Used 15 MSB Read
Not Used 14 Read
Not Used 13 Read
Not Used 12 Read
Not Used 11 Read
Not Used 10 Read
Latching/Non-Latching 9 R/W
Energized/De-Energized 8 R/W
Low Set point (7-0) R/W
8.8.15 Com1 Address (0FH)
A read command returns the current address for Com1. A write command changes the
address to the requested value. Valid addresses are 1-247 decimal. Factory default is 1.
Exception: If the address is not in range an illegal data value (03) is returned.
8.8.16 Com1 Baud Rate (10H)
A read command returns the current baud rate for Com1. A write command changes the baud
rate to the requested values. Valid settings are shown in the table on the following page.
Factory default is 19200.
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