RayTek MI3 Operating Instructions Manual page 95

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Byte
6
7...9
10 (0x0A)
11 (0x0B)
12 ... 22 (0x0C ...16)
23 (0x17)
24 (0x18)
25 (0x19)
26 (0x1A)
27 (0x1B)
28 (0x1C)
29 (0x1D)
30 (0x1E)
MI3
Description
size of the diagnosis
reserved
highest address of the connected heads  up to which index the user data is valid
box error code
last MI3-command which created an error as answer; ASCII code
head_1 error code
head_2 error code
head_3 error code
head_4 error code
head_5 error code
head_6 error code
head_7 error code
head_8 error code
Table 14: Diagnose Data
Bit Description
0
Self-test error
1
Box ambient temperature out of range
2
Sensing head communication error
3
Parameter error
4
Register write error
Table 15: Error Bits of Box Diagnose
Bit
Description
0
Object temperature out of range
1
Ambient (internal) temperature out of range
2
Parameter error
3
Register write error
4
Self-test error
5
reserved
6
Head registered but not connected  cable break?
Table 16: Error Bits of Head Diagnose
Figure 81: Diagnose Data without Errors
Rev. G Nov/2015
Profibus
95

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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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