Omron DDAA1000-SRM User Manual
USER GUIDE
DDAA1000/SRM
Discrete/Analog Wireless Multiplexer
OMMUNICATIONS
C
ATA
D
NDUSTRIAL
I
It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment.
Product User Guide
FCC Notification
This device complies with part 15 of the FCC rules. Operation is subject to the following conditions:
1) This device may not cause harmful interference and
2) This device must accept any interference received, including interference that may
cause undesired operation.
The device must be operated as supplied by Data-Linc Group. Any changes or modifications made to the
device without the express written approval of Data-Linc Group may void the user’s authority to operate the
device.
Caution: This device has a maximum transmitted output power of 955 mW . It is required that the
transmit antenna be kept at least 23 cm away from nearby persons to satisfy FCC RF exposure
requirements.
Note: This equipment has been tested and found to comply with the limits for a Class A digit al device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a industrial installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular inst allation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Note: Whenever any Data-Linc Group SRM series modem is placed inside an enclosure a label must be
placed on the outside of that enclosure which includes the modem’s FCC ID.
The following antennas are approved for use with Data-Linc Group’s 900MHz series modems.
NOTE: Per FCC Rules, the maximum power allowed at the antenna is 4 Watts E.I.R.P.
900MHz Directional Antenna
Gain Manufacturer Manufacture Model Number Data-Linc Model Number
8.2 dBi Larsen Y A6900W A-YB
11 dBi Larsen Y A5900W A-YHB
900MHz Omni-Directional Antenna
Gain Manufacturer Manufacture Model Number Data-Linc Model Number
5.2 dBi Maxrad MAX9053 A-OB
7.2 dBi Maxrad MAX9075 A-O5B
0 dBi Ying Hao YH920801/AD-725-A-1 A-06/ADJ
0 dBi Centurion EXC-902-BN A-06BH-3S / 10S (**)
(**) This part number refers to an antenna kit(s). The 0 dBi refers to the antenna portion of the kit.
Note: The antenna used for this device must be professionally installed on a fixed-mounted permanent
outdoor structure for satisfying RF exposure requirements, including antenna co-location requirements
of 1.1307(b)(3).
DATA-LINC GROUP
PN 161-09981-002C
Table of Contents
DDAA1000/SRM User Guide
Page
Introduction 3
Discrete Operation 5
Analog Operation 8
Changing System or Radio Configurations 12
Technical Specifications 13
Troubleshooting 14
Technical Support 15
Return Material Authorization 15
Contact Information 15
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Appendix A
Enclosure Dimensions 16
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Appendix B
System Configuration 17
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Appendix C
Radio Configuration 21
Main Menu Option (0): Set Operation Mode 23
Main Menu Option (1): Set Baud Rate 25
Main Menu Option (2): Edit Call Book 26
Main Menu Option (3): Edit Radio Transmission Characteristics 28
Main Menu Option (4): Show Radio Statistics 33
Main Menu Option (5): Edit Multi-Point Parameters 35
Main Menu Option (8): Password 38
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Modem Placement Locations 39
PN 161-09981-002C
rev 8/04
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DATA-LINC GROUP
1
DDAA1000/SRM User Guide
2
DATA-LINC GROUP
PN 161-09981-002C
rev 8/04
DDAA1000/SRM User Guide
Introduction
The DDAA1000/SRM and DD1000/SRM are discrete/analog signal multiplexers. They are designed to provide increased
communication distance where wire lengths are too long or not possible. In general, these units behave as if they replace a
set of wires between the two or more locations. These units are normally factory configured and eliminate the necessity of
having to preset the system configurations. The units are ready for installation into the system upon receipt. If the system
changes, these units do have the capability to be field reconfigured and to have access to the radio setup parameters using
jumper settings and a serial cable to a PC.
Two version of the product exist. The DDAA1000/SRM has both analog and discreet inputs and outputs. The DD1000/SRM
has only the discrete inputs and outputs. Discrete (digital) connections and operations are the same for both of the models.
Only the DDAA1000 has 4-20 mA inputs and outputs. Both the DDAA1000/SRM and the DD1000/SRM have distinct
master and remote units. Each system must have one and only one master , and can up to 8 Remotes.
Both the DDAA1000 and the DD1000 take an input at one end and reproduce it at the other end. The Master unit has a
possible total of 8 discrete inputs, 8 discrete relay drive outputs. The Master has eight 4-20 mA inputs and eight 4-20 mA
outputs. When designing a system that use these units, keep in mind that if using more than one remote (8 possible) that
the Master unit can never have more that 8 digital-in, 8 digital-out, 8 analog-in, and 8 analog-out.
Communication is accomplished using radio transmissions. A six inch unity gain whip antenna is supplied with each unit
for test purposes. Note that line of sight is required for communications. In some instances, under 1/2 mile (.80 km), line of
sight may not be necessary. If line of sight does not exist or the unit s are to be mounted into grounded met al enclosures,
an external antenna may be needed. If external antennas were not purchased with this equipment, contact Data-Linc Group
for information.
Figure 1: DDAA1000 and DD1000
Contact C losure In put
CD
Tx
Rx
DDAA1000/SRM/M
Pwr
4-20mA Input
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Cont act Closu re O utput
Status
Power
(425 ) 88 2-220 6
4-20mA Ou tput
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
PN 161-09981-002C
rev 8/04
DATA-LINC GROUP
3
DDAA1000/SRM User Guide
T able 1: LED Description
DC
xT
xR
rwP
sutatS
Figure 2: Normal User Connection
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Antenna
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4
DATA-LINC GROUP
PN 161-09981-002C
rev 8/04
DDAA1000/SRM User Guide
Discrete Operation
Requirements
1. The outputs of the units cannot directly drive a relay. The digital outputs are open collector current sinking to the
common ground. An external power supply must be used to provide DC power to any relays.
2. The maximum voltage on the relay driver outputs is 24 VDC.
3. Ensure that the pull up voltage is sufficient for your relay. i.e. a 12 VDC relay needs 12 VDC, a 24 VDC relay needs 24
VDC.
4. Each digital output can sink up to 100 mA for the purpose of controlling the relay coil.
5. If driving inductive loads, place a voltage suppression diode across the relay coil.
6. There is one common ground for all input and output connections.
Connections
The discrete connection to the device is made via the terminals labeled “Contact Closure Input” and
“Contact Closure Output.” The digital input expects a dry contact, such as a switch or even just a jumper wire.
The output is open collector. The following diagram illustrates the output drive circuit connection for a discrete unit.
Figure 3: Simplified Open Collector
DDAA1000
Output
Customer
Supplied
Relay
Output
1,2,3...,8
DC Supply
+ -
Common
PN 161-09981-002C
rev 8/04
DATA-LINC GROUP
5
DDAA1000/SRM User Guide
Point-to-Point Discrete Operation
The following illustrates an example of a point-to-point discrete system. The “Contact Closure Input” may be as simple as a
bare wire or be connected to an output of an I/O module. This is an example of turning a lamp at the Master unit by closing
a contact at the Remote unit using a discrete output.
Point-to-point discrete operations are bi-directional. An input on the Remote will activate same numbered output on the
Master. A contact closure on an input of the Master will close the output on the Remote on the same cont act.
Figure 4: Point-to-Point Discrete Operation Example
DC Su pply
+ -
Dry Contact Closure
Conta ct Cl osure Input Cont act Cl osure Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Master
Conta ct Cl osure Input Cont act Cl osure Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Remote
6
DATA-LINC GROUP
PN 161-09981-002C
rev 8/04
DDAA1000/SRM User Guide
Point-to-Multipoint Discrete Operation
A multipoint system will involve two or more remote locations, which may be transmitting contact input information,
providing discrete outputs or both. The following is an example of a multipoint configuration.
In this example, the Master is transmitting a contact closure input to both Remotes. Note that input #1 on the Master will
trigger the same numbered output on all Remote units at the same time.
Since there are more remote inputs than master outputs, the contact closures at the Remote inputs are ‘OR’d at the
Masters outputs. The closure of any Remote input will cause the Master output to be On (sinking current). If any Remote
input is closed the Master output will be On for that position. For the Master output to be Off, all Remote inputs must be
open (Off).
Figure 5: Point-to-Multipoint Discrete Operation Example
DC Su pply
+ -
Dry Contact Closure
Conta ct Clo sure I nput Conta ct Closur e Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Master
Conta ct Clo sure I nput Conta ct Clo sure O utput
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Remote 0
DC Su pply
+ -
Conta ct Clo sure I nput Conta ct Closur e Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Remote 1
PN 161-09981-002C
rev 8/04
DATA-LINC GROUP
7
DDAA1000/SRM User Guide
Analog Operation
Specifications
1. This unit does not provide loop power to devices.
2. The outputs can operate on loops with a maximum total resistance of 300 ohms.
3. The resolution of this unit is 8 bits with accuracy of 2%.
4. All input s use a common ground connection labeled “G”.
5. This system is not designed to replace PLCs.
6. It is not recommended to use this product with PLC applications.
7. The input signal must be a 4-20 mA signal.
Point-to-Point Analog System
These units are bi-directional, they send and receive analog information both directions. The following is a common example
of analog use for the DDAA1000/SRM units. Again, the Master’s input corresponds to the same numbered output on the
Remote and vice versa. The 8 Master inputs match the 8 Remote outputs and the 8 Remote inputs match the 8 Master
outputs.
Figure 6: Point-to-Point Analog Example
Sensor
with 4 -20 mA
Output
Pwr
4-20mA Input
Master
4-20m A Outpu t
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
Note: A loop power supply may be
needed. The DDAA1000 unites do not
supply loop power.
Pwr
4-20mA Input
Remote
4-20m A Outpu t
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
13.7
mA
mA
8
DATA-LINC GROUP
PN 161-09981-002C
rev 8/04
Figure 7: Connection of a flow meter to the DDAA1000/SRM unit
Master or Remote
Pwr
4-20mA Input
12 -2 4 VDC Suppl y
Loop Power
+ -
B A
4-20m A Out In fr om Senso r
4-20mA Ou tput
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
DDAA1000/SRM User Guide
Flow Meter
PN 161-09981-002C
rev 8/04
DATA-LINC GROUP
9
DDAA1000/SRM User Guide
Point-to-Multipoint Analog System
Unlike the discrete versions, the system must be configured for where specific inputs and outputs are directed. Each unit is
normally factory configured and designed to interface with the specific system. Alterations to this configuration are possible
using an accessory cable and jumpers and software provided by Data-Linc Group. Reconfiguring the units requires the
removal of the cover and uses a custom serial data cable connected to a computer. The reconfiguration of the Master and
Remotes should normally be left to qualified personnel or performed under Data-Linc Group supervision
Factory Configuration Process
At the factory , each remote unit is given an address, which is zero (0) to seven (7). Each unit is then programmed for a
specific number of analog inputs and outputs, which should to be predetermined prior to sale. Also consider if the system is
to be expended in the future. Note that any system will have one Master and a maximum of 8 Remotes.
Limitations of the Configuration Process
Each master unit has eight analog inputs and eight analog outputs. These inputs and outputs can be spent in a variety of
ways when configuring a multipoint system. Note that with analog operation, each remote unit’s input corresponds with a
specific master output. T wo remote units cannot share the same inputs and output s as with the discrete section. The
following is a sample diagram of a point to multipoint configuration.
10
DATA-LINC GROUP
PN 161-09981-002C
rev 8/04
DDAA1000/SRM User Guide
Point-to-Multipoint Analog Operation
A system is to be built where one analog input exist at one remote and one at another. The maximum possibility of master
outputs is eight, so this is a valid configuration. Remote 0 being the first remote in the Master’s poll list will be assigned
Master output one. Remote 1 being next in the poll list will be Master output two.
Figure 8: Point-to-Multipoint Analog Example
Remote 0
Master
Pwr
4-20mA Input
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
*** Systems with only one
analog input on each remote
ote 0
ote 1
em
em
R
R
utput from
utput from
O
O
4-20mA Output
13.7
mA
Sensor
with 4 -20 mA
Output
Pwr
4-20mA Input
Note: A loop power supply may be
needed. The DDAA1000 unites do not
supply loop power.
4-20mA Output
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
Remote 1
mA
Sensor
with 4 -20 mA
Output
Pwr
4-20mA Input
4-20mA Output
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
Note: A loop power supply may be
needed. The DDAA1000 unites do not
supply loop power.
PN 161-09981-002C
rev 8/04
DATA-LINC GROUP
11
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