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LubriMist
®
Model JD
Oil Mist Generating System
Installation and Operating Manual
Page 88 of 152
Holding Registers Addresses;
Address (HEX) Message frame Address Description
01 =
00
---
LubriMist Unit Number
02
=
01
---
Air Temp. --- Control SP
03
=
02
---
Air Temp. --- High Alarm SPt
04
=
03
---
Air Temp. --- Low Alarm SPt
05
=
04
---
Air Temp. --- High Temp. Cutout SPt
06
=
05
---
Air Pre Heater Temp. --- Enable SPt
07
=
06
---
Supply Air Press. --- High Alarm SPt
08
=
07
---
Supply Air Press. --- Low Alarm SPt
09
=
08
---
Regulated Air Press. --- High Alarm SPt
a
=
09
---
Regulated Air Press. --- Low Alarm SPt
b
=
0a
---
Supply Oil Press. --- High Alarm SPt
c
=
0b
---
Supply Oil Press. --- Low Alarm SPt
d
=
0c
---
Mist Press. --- High Alarm SPt
e
=
0d
---
Mist Press. --- Low Alarm SPt
f
=
0e
---
Mist Density --- High Alarm SPt
10
=
0f
---
Mist Density --- Low Alarm SPt
11
=
10
---
Bulk Oil Reservoir Temp. --- High Alarm SPt
12
=
11
---
Bulk Oil Reservoir Temp. --- Low Alarm SPt
13
=
12
---
Bulk Oil Reservoir Level --- High Alarm SPt
14
=
13
---
Bulk Oil Reservoir Level --- Low Alarm SPt
15
=
14
---
Air Pre-heater Temp. --- Control SPt
16
=
15
---
Air Pre-heater Temp. --- High Alarm SPt
17
=
16
---
Air Pre-heater Temp. --- Low Alarm SPt
18
=
17
---
Air Pre-heater Temp. --- High Temp Cutout S.P.
Message frame being received
Holding Register, Function code 03, Refers to the setpoints from the JD
([01] [03] [02] [07] [cf] [fa] [20]).
1) Device I.D. in
Modscan screen has to
be the same as the JD
location
2) In the Modscan
screen Modbus point
type & Function code are
the same thing
3) Data Received,
consisting of length and
the status being polled
4) Cyclical Redundancy
Checking or CRC
[01]
[03]
([02]) ([07] [cf])
[fa] [20]
The first two sets of numbers are going to be the same as the previous.
1) Is the device ID 01.
2) The Function code 03.
3) Data Received---Has 3 sets of numbers a [02] and a [07] [cf]. The first set of numbers [02] represent the
number of bites of the value status being received (black field), meaning for every single digit added to the
length in the Modscan screen two bites of data will be received, so if the length is 1 in the Modscan screen, a
[02] is sent back in the message frame being received (black field). If the length in the Modscan screen were
2 the data sent back would be [04], if it were 3 then it would be [06] and so on.
The second set of numbers is the value being polled in HEX, Example [07] [cf] in hex is 1999 in decimal, and
this is the number identifier for that particular JD. If the length were 2, in the Modscan screen, from the
statement previous, the data received would be [07] [cf] [00] [78]. It would send back the first 2 sets of values
in the Holding Registry from Address (HEX) 0001 which are (LubriMist Unit Number meaning [07] [cf] in HEX
or 1999 in decimal, and Air Temp. Control Setpoint meaning [00] [78] in HEX or 120 in decimal. So if the
length were set at 24, then all the values would be received from the JD controller, in the black field.
Refer
to figure 5.