RayTek MI3 Operating Instructions Manual page 102

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Modbus
Starting
Size
Modbus
address
[bits]
Access
<n>220
16
holding
register
<n>230
32
holding
register
<n>240
32
holding
register
<n>250
32
holding
register
<n>260
32
holding
register
<n>270
32
input register integer Power / AD value
<n>280
32
holding
register
<n>290
32
holding
register
<n>300
16
holding
register
<n>310
32
holding
register
<n>320
32
holding
register
102
Data
Content
Type
char
Emissivity Source
float
Presel. Emissivity
float
Valley hold time
float
Average time
float
Peak hold time
float
Presel. Setpoint
float
Transmissivity
short
FTC3 trigger/hold
float
Setpoint relay function
float
Adv. hold hysteresis
Rev. G Nov/2015
Values
I: internal command
E: ext. input (0V .. 5V)
D: digital selected FTC1-3
0.1 .. 1.1
0.0 .. 998.9s (999: infinite)
0.0 .. 999.0 [seconds]
0.0 .. 998.9 [seconds] (999: infinite)
0.1 .. 1.0
1: trigger, 2: hold
number within range <n>060 .. <n>070 XS
MI3[M]
command
ES
EV
F
G
P
Q
SV
XG
XN
XY
MI3

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Jeff Crabb
April 7, 2025

I am currently installing 4 modules, each with 2 of the Raytek MI3 units. 7 of the units arrived with the normal display (Bottom Unit in photo), but 1 has only a full white block in the display. Is this indicative of a failed unit, or would this require external adjustments. These units always work when received, so I am unfamiliar with the required troubleshooting.

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