Focal 923 User manual

Focal Technologies Corporation
A Moog Inc. Company
77 Frazee Avenue
Dartmouth, Nova Scotia, Canada B3B 1Z4
Tel: [phone] | www.moog.com/focal
MOOG PROPRIETARY AND CONFIDENTIAL INFORMATION
THIS TECHNICAL DATA/DRAWING/DOCUMENT CONTAINS INFORMATION THAT IS PROPRIETARY TO, AND IS THE EXPRESS PROPERTY OF MOOG
INC., OR MOOG INC. SUBSIDIARIES EXCEPT AS EXPRESSLY GRANTED BY CONTRACT OR BY OPERATION OF LAW AND IS RESTRICTED TO USE
BY ONLY MOOG EMPLOYEES AND OTHER PERSONS AUTHORIZED IN WRITING BY MOOG OR AS EXPRESSLY GRANTED BY CONTRACT OR BY
OPERATION OF LAW. NO PORTION OF THIS DATA/DRAWING/DOCUMENT SHALL BE REPRODUCED OR DISCLOSED OR COPIED OR FURNISHED
IN WHOLE OR IN PART TO OTHERS OR USED BY OTHERS FOR ANY PURPOSE WHATSOEVER EXCEPT AS SPECIFICALLY AUTHORIZED IN WRITING
BY MOOG INC. OR MOOG INC. SUBSIDIARY.
Model 923
Data Logger
User Manual
Document No.:
923-0603-01
Revision:
2
Author(s):
R.Sawler
Date of Issue:
2017-04-24

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page ii
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
Document Revision History
Document
Revision
Details of Revision
Author(s)
Date
[yyyy-mm-dd]
Rev 1
Initial release.
A. Cabrera
2015-08-10
Rev 2
-Updated title page, headers and footers
-Change all references of 4 analog channels to 2
-Update GUI images
-Update board images to Rev4.0
-Update Analog Inputs section for 2 channel description
-Add Adjustable Analog Input display to special features
-Updated Serial Output Mode in Modbus table to show
only Modbus RTU is supported
R. Sawler
2017-04-24
Reference Documents
Document Number
Document Title and Description
923-2004-00
Model 923 Data Logger Configuration Drawing

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page iii
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
TABLE OF CONTENTS
1.0 Introduction........................................................................................................................................... 1-1
2.0 Specifications....................................................................................................................................... 2-1
3.0 Product Description............................................................................................................................. 3-1
3.1 Configuration Settings and Initial User Setup............................................................................... 3-2
3.1.1 Configuration Settings ..................................................................................................... 3-2
3.1.2 Initial User Setup ............................................................................................................. 3-3
3.2 Data Logging ................................................................................................................................ 3-3
3.3 Real Time Clock (RTC) ................................................................................................................ 3-3
3.4 On-Board Sensors........................................................................................................................ 3-4
3.4.1 Temperature and Humidity Sensor ................................................................................. 3-4
3.4.2 3-Axis Accelerometer Sensor (Shock and Vibration)...................................................... 3-4
3.4.3 Ambient Light Sensor ...................................................................................................... 3-4
3.4.4 Rotation Sensor (Turns Counter and Speed).................................................................. 3-4
3.5 Interfaces...................................................................................................................................... 3-5
3.5.1 Thermocouple Inputs....................................................................................................... 3-5
3.5.2 Analog Inputs................................................................................................................... 3-5
4.0 Hardware............................................................................................................................................... 4-1
4.1 General Board Handling............................................................................................................... 4-1
5.0 Electrical Connectors and Pin Descriptions ..................................................................................... 5-1
5.1 9-pin Micro-D Power and Data Connector (J5) ............................................................................ 5-1
5.2 Thermocouple Input Connectors (J6, J15)................................................................................... 5-1
5.3 12-Pin Analog Input Connector (J4)............................................................................................. 5-2
6.0 Functionality......................................................................................................................................... 6-1
6.1 Serial Diagnostic Interface............................................................................................................ 6-1
6.1.1 Modbus RTU ................................................................................................................... 6-1
6.2 Diagnostics Software.................................................................................................................... 6-2
6.2.1 Overview.......................................................................................................................... 6-2
6.2.2 Installation........................................................................................................................ 6-3
6.2.3 Application Usage............................................................................................................ 6-3
6.2.4 Special Features.............................................................................................................. 6-5
7.0 Register Maps....................................................................................................................................... 7-1
7.1 Modbus RTU Register Map.......................................................................................................... 7-1
7.1.1 On-board Sensor Registers............................................................................................. 7-4
7.1.2 Sensor Data Conversion ................................................................................................. 7-5

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page iv
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
LIST OF TABLES
Table 2-1: Specifications....................................................................................................................................2-1
Table 3-1: Factory Default Card Configuration Settings (as-built).....................................................................3-2
Table 5-1: Connector/Mating Connector Part Numbers ....................................................................................5-1
Table 5-2: Micro-D (9-pin) Connector (J5) Pin out.............................................................................................5-1
Table 5-3: Thermocouple Input (3-pin) Connector (J6, J15) Pinout ..................................................................5-1
Table 5-4: Analog Input (12-pin) Connector (J4) Pin out...................................................................................5-2
Table 6-1: Modbus RTU Frame Format and 923-EDL Defaults........................................................................6-1
LIST OF FIGURES
Figure 1-1: Model 923 Electronic Data Logger Card .........................................................................................1-1
Figure 3-1: Model 923-EDL Part Locations........................................................................................................3-1
Figure 3-2: Model 923-EDL Typical Setup Connection Using a PC and Focal GUI..........................................3-3
Figure 4-1: Model 923-EDL PCBA.....................................................................................................................4-1
Figure 5-1: Micro-D (9-pin) Power & Data Connector (J5) ................................................................................5-1
Figure 5-2: Thermocouple Input Connectors (J6, J15)......................................................................................5-1
Figure 5-3: 12-pin Analog Input Connector (J4) ................................................................................................5-2
Figure 6-1: 923-GUI...........................................................................................................................................6-2
Figure 6-2: Connection Manager .......................................................................................................................6-3
Figure 6-3: Add a New Data Logger Configuration............................................................................................6-4
Figure 6-4: 923-GUI –Reading the Data from Flash (Internal Log) ..................................................................6-5
Figure 6-5: 923-GUI –File Read-back Function (Load Log) .............................................................................6-8
Figure 6-6: 923-GUI –Alarm Configuration.......................................................................................................6-9
Figure 6-7: 923-GUI –Time Synchronization of 923-EDL RTC’s with PC ......................................................6-10
Figure 6-8: 923-GUI –ADC Controls...............................................................................................................6-11
Figure 6-9: 923-GUI –Adjusted Analog Input..................................................................................................6-11

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page v
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
ACRONYMS AND ABBREVIATIONS
ADC
Analog to Digital Converter
CRC
Cyclic Redundancy Check
ECL
Emitter Coupled Logic (Vcc = 0V)
EIA
Electronic Industries Association
ESD
Electrostatic Discharge
ESR
Electrical Slip Ring
FORJ
Fiber Optic Rotary Joint
FPSO
Floating Production, Storage and Offloading
HUMS
Health and Usage Monitoring System
I/O
Input/output
IC
Integrated Circuit
kbps
Kilobits Per Second
LED
Light Emitting Diode
MB
Megabytes
Mbps
Megabits Per Second
NRZ
Non-Return to Zero (bit signaling format)
PCB
Printed Circuit Board
PCBA
Printed Circuit Board Assembly
PECL
Positive Emitter Coupled Logic (Vcc = +5 V)
P/N
Part Number
RPM
Revolutions Per Minute
SMT
Surface Mount Technology
SPI
Serial Peripheral Interface
TDM
Time Division Multiplexer / Multiplexing
TTL
Transistor-Transistor Logic
UART
Universal Asynchronous Receiver/Transmitter
uC
Microcontroller

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page 1-1
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
1.0 Introduction
The Model 923 electronic data logger (923-EDL) is a compact and rugged data logging card used for product
health monitoring in marine, industrial, and other harsh environments. When installed as an option in FocalTM
systems such as electrical slip rings (ESRs) and FPSOs, it provides real-time access to diagnostic information
as well as data storage for offloading at a later time. Typically mounted at the end of a ring stack, the 923-EDL
collects data from an array of on-board sensors and stores it in nonvolatile flash memory.
The 923-EDL on-board sensors are capable of measuring temperature, relative humidity, ambient light, shock,
vibration and rotation. Logging the total number of slip ring rotations allows tracking of slip ring usage for better
planning of maintenance intervals. The environmental data collected can be used to establish baseline
operational parameters and trend monitoring can be used in a health and usage monitoring system (HUMS) to
identify potential problems before they become major faults. In addition to the on-board sensors, the 923-EDL
provides expansion connectors that can be used to interface with up to two (2) thermocouples and up to two (2)
single-ended analog channels.
Users can access on-board diagnostic information in real time via an RS-485 serial link using the sample FocalTM
graphical user interface (GUI) software (based on the Microsoft®.NET Framework), or by using custom software
configured as a Modbus RTU master device (e.g. ModScan32). A top view of the Model 923-EDL card is shown
below.
Figure 1-1: Model 923 Electronic Data Logger Card
This user’s manual and the appropriate reference documents should be reviewed prior to
installation or reconfiguration of the data logger system. Refer to system installation drawings and
Model 923 configuration drawings for specific installation details.

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page 2-1
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
2.0 Specifications
Table 2-1: Specifications
ENVIRONMENTAL
VALUE
COMMENTS
Operating Temperature
-20°C to +70°C
Storage Temperature
-40°C to +85°C
Shock
30 g, 11 ms
Per ISO 13628-6 Q1 level
Vibration
5 g, 25 - 1000 Hz
Per ISO 13628-6 Q1 level
Humidity
5-95% RH
Non-condensing
MECHANICAL
Dimensions
3.37” [86 mm] (NOM)
External diameter
Mounting
4 x #2 screw holes
Use with #2-56 standoffs
Weight
< 40 grams
ELECTRICAL
Input Voltage
+15 to +30 VDC
+24 VDC nominal
Optional: +5 or +12 VDC (contact
factory for details)
Current Draw
0.04 A (TYP)
With 24 VDC input
Power Dissipation
1.0 W (NOM), 2.0 W (MAX)
Overvoltage Protection
36 VDC
Reverse Polarity Protection
36 VDC
Battery
3.3V lithium-Ion rechargeable
For real-time clock only
SENSORS
Temperature Sensor
-40°C to +100°C
Accuracy +/- 1 °C
Humidity Sensor
5 - 95 % RH
Light Sensor
λ =300 to 1000 nm
Wavelength range
3-axis Accelerometer
+/- 200 g
Rotation Sensor
Direction (CW, CCW), speed
(rpm) and total revolutions
Real Time Clock Accuracy
+/- 5 ppm
Logging Flash Memory Size
32 MB
14 years logging at 60 min log interval
Thermocouple
-40°C to +100°C
K-type thermocouple
4 x Analog Input
0 to +3 VDC
10 bit, 200 Hz sampling
INTERFACES
Diagnostic and control
2-wire RS-485 serial interface
with ISO ground
115.2 Kbaud, Modbus RTU

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page 3-1
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
3.0 Product Description
The 923-EDL card provides an array of on-board sensors and interfaces for external sensors. The card is
typically installed at the factory inside FocalTM rotary products such as ESRs and FPSOs. With power applied to
the 923-EDL, sensor data is logged automatically to on-board flash memory and simultaneously available in real
time via an RS-485 serial link (J5) to a remote location. Key part locations are shown below.
REF.
DESCRIPTION (CONNECTORS)
J4
1 x 12-PIN CONN. FOR
2 x ANALOG INPUTS (SINGLE-ENDED)
J5
1 x 9-PIN MICRO-D CONNECTOR FOR
POWER AND DIAGNOSTICS (RS-485)
J6, J15
2 x 3 PIN THERMOCOUPLE INTERFACES
J3, J7,
J10
FACTORY USE ONLY
REF.
DESCRIPTION (OTHERS)
B1
3.3V LITHIUM-ION RECHARGEABLE
BATTERY
SW1,
SW2
FACTORY USE ONLY
Figure 3-1: Model 923-EDL Part Locations

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page 3-2
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
3.1 Configuration Settings and Initial User Setup
The 923-EDL cards are configured at the factory and the user does not need perform any additional card
configuration settings to start operating the card and obtain diagnostics data.
3.1.1 Configuration Settings
Table 3-1: Factory Default Card Configuration Settings (as-built)
Name
Parameter
Default Setting
Diagnostics Port (J5) (Hardware)
Serial
Interface
RS-485
Termination
On-board 120 ohm Terminator
Enabled / Disabled
120 ohm terminator enabled (installed)
On-Board Dip Switches SW1/2 (Hardware)
SW1
Data port serial protocol
RS-485 (SW1[1:2] = ON, ON)
SW2
Data port serial protocol
RS-485 (SW2[1:2] = ON, ON)
Diagnostics (software)
Modbus
Frame Format
RTU
Node
1
Baud Rate
115,200 Baud
Supported Function Codes
Function Code 3: Read Holding Registers
Function Code 6: Write Single Holding Register
(other codes are not available)
User defined parameters via the diagnostics port:
Log interval (1 –120 minutes)
Node ID (1 - 255)

Model 923 Data Logger –User Manual
Focal Technologies Corporation Page 3-3
A Moog Inc. Company Document No: 923-0603-01, Rev. 2
3.1.2 Initial User Setup
The only initial user setup requirement to start logging sensor data is to power up the 923-EDL card with
+24 VDC (nominal). In order to access real-time sensor data the user can connect to the card via the RS-485
port using the sample FocalTM GUI as shown in the figure below or a 3rd party Modbus RTU software
configured as a master.
Figure 3-2: Model 923-EDL Typical Setup Connection Using a PC and Focal GUI
3.2 Data Logging
The 923-EDL uses a proprietary logging algorithm that enables the card to compute the maximum, minimum
and average measurement of all the sensor parameters within the specified log interval. This allows the user to
select longer log intervals without losing sight of critical events within the specified log interval. The data logging
interval can be set between 1 to 120 minutes and it can be changed by the user by using Focal’s GUI software
through the data port J5.
The data obtained from the sensors is stored in the card’s on-board 32 MB flash memory. This memory size
allows up to 14 years’ worth data to be stored when the log interval is set to 60 minutes.
3.3 Real Time Clock (RTC)
The 923-EDL has an on-board a real time clock (RTC) with an accuracy of ±5 ppm. An on-board, 3.3V
rechargeable lithium-ion battery (B1) maintains the correct time even when the card is not powered for a period
of up to four months. This real time clock is used as the time stamp when logging the sensor data into on-board
flash memory. The time stamp will be reset to factory default if the battery has been drained –any data logged
to the flash memory with a dead battery will be accurate, but the time stamp will start at 01/01/2000 00:00:00
(dd/mm/yyyy hh:mm:ss).
The on-board battery is recharged while the board is powered on. Note that the battery is intended solely to
keep the RTC running, not to operate the entire data logger. Normally the RTC is operation even when there is
no power applied to the card.
Note: The RTC is normally synchronized with a PC’s clock. The factory clock used to synchronize the RTC has
a time zone of UTC-04:00 (Atlantic Time Canada) and when connecting to the card using the sample GUI, the
user will be prompted with the option to re-sync the RTC with the local PC or keep the factory default values. It
is recommended to re-synchronize the RTC at the time of final system installation.