MSA Ultima Instruction Manual Addendum

Table 13-13 ModBUS Command Word 2
(Read at address Base+302/Write Coils 17 through 32)
NAME BIT COIL FUNCTION DESCRIPTION
Sensor Swap Delay 0 17 1-Enable, 0-Disable
Alert Option Enable 1 18 1-Enable, 0-Disable
Acknowledge or
Reset Latched Alarms(ACK) 2 19 1 to initiate (same functionality as Push-
button or IR command)
Reset Main Board and sensors 3 20 1 to initiate
For future use 4 21
For future use 5 22
Reset Data Sheet - Sensor 1 6 23 1 to initiate
Reset Data Sheet - Sensor 2 7 24 1 to initiate
Reset Data Sheet - Sensor 3 8 25 1 to initiate
Disable Sensor 1 9 26 1 to Disable
Disable Sensor 2 10 27 1 to Disable
Disable Sensor 3 11 28 1 to Disable
Reserved for future use 12 29
Reserved for future use 13 30
Reserved for future use 14 31
Not used 15 32
Table 3-14. Sensor Type
SENSOR TYPE
VALUE SENSOR TYPE
13 COMB-1S 100% LEL, 1% LEL, 25% LEL (0.6% Propane)
257 CO 100 PPM, 1 PPM, MSA 25E/F, 60 PPM
258 CO 500 PPM, 1 PPM, MSA 25E/F, 300 PPM
259 SO
2
25 PPM, 1 PPM, CTL 7ST/F, 10 PPM
260 H
2
S 10.0 PPM, 0.1 PPM, MSA HS25B, 5.0 PPM
261 H
2
S 50.0 PPM, 0.1 PPM, MSA HS25B, 40 PPM
262 H
2
S 100 PPM, 1 PPM, MSA HS25D, 40 PPM
263 NO 100 PPM, 1 PPM, CTL 7NT, 50 PPM
264 NO
2
10.0 PPM, 0.1 PPM, MSA ND25C, 5.0 PPM
265 CL
2
5.0 PPM, 0.1 PPM, MSA CL25B, 2.0 PPM
266 HCN 50 PPM, 1 PPM, MSA HN25C, 10 PPM
267 HCL 50 PPM, 1 PPM, MSA HL25C, 40 PPM
12 O
2
25.0%, 0.1%, MSA 10019727, 20.8%
14 COMB-1S 100%LEL, 1% LEL, 40% LEL
3-10

MSA Ultima Specifications

General

Brand	MSA
Model	Ultima
Category	Monitor
Language	English