Data-Linc Group DDAA1000/SRM Manuel utilisateur
USER GUIDE
I
NDUSTRIAL
D
ATA
C
OMMUNICATIONS
It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment.
Discrete/Analog Wireless Multiplexer
DDAA1000/SRM
DATA-LINC GROUP
PN161-09981-002C
Product User Guide
FCC Notification
This device complies with part 15 of the FCC rules. Operation is subject to the following conditions:
1) This devicemaynot causeharmfulinterference and
2) This devicemustaccept any interferencereceived,including interferencethat may
causeundesired operation.
The device must be operated as supplied by Data-Linc Group.Any changes or modifications made to the
devicewithout theexpress writtenapproval ofData-Linc Groupmay voidthe user’sauthorityto operatethe
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 ClassAdigital device, pursuant
topart 15 of the FCC Rules. These limits are designed to provide reasonable protection againstharmful
interferencein aindustrial installation.This equipmentgenerates, usesand canradiate radiofrequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications.However, thereis noguarantee thatinterference willnot occur in a particular installation.If
thisequipment doescause 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
followingmeasures:
Reorientor relocatethereceiving antenna.
Increasethe separation betweentheequipment andreceiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consultthe dealeror anexperienced radio/TVtechnician for help.
Note: Wheneverany 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.
Thefollowing antennasareapproved foruse with Data-LincGroup’s 900MHz seriesmodems.
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 YA6900W A-YB
11 dBi Larsen YA5900W 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
of1.1307(b)(3).
DATA-LINC GROUP
1
DDAA1000/SRMUser Guide
PN161-09981-002C
rev 8/04
Table of Contents Page
Introduction 3
Discrete Operation 5
AnalogOperation 8
Changing System or Radio Configurations 12
Technical Specifications 13
Troubleshooting 14
Technical Support 15
ReturnMaterialAuthorization 15
Contact Information 15
AppendixA
Enclosure Dimensions 16
AppendixB
System Configuration 17
AppendixC
RadioConfiguration 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
Modem Placement Locations 39
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DATA-LINC GROUP
2PN161-09981-002C
rev 8/04
DDAA1000/SRMUser Guide
DATA-LINC GROUP
3
DDAA1000/SRMUser Guide
PN161-09981-002C
rev 8/04
Introduction
TheDDAA1000/SRM andDD1000/SRMare discrete/analogsignal multiplexers. Theyare designedto 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/SRMhas bothanalog anddiscreet inputsand 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
theMaster unit can never have more that 8 digital-in, 8 digital-out,8 analog-in,and 8analog-out.
Communication is accomplished using radio transmissions.Asix 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 units are to be mounted into grounded metal enclosures,
anexternal antenna may be needed. If external antennas were not purchasedwith thisequipment, contactData-Linc Group
forinformation.
Figure 1: DDAA1000 and DD1000
DDAA1000/SRM/M
Power
CD
Status
Pwr
Rx
4-20mA Input 4-20mA Output
Contact Closure Input
Tx
Contact Closure Output
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
(425) 882-2206
DATA-LINC GROUP
4PN161-09981-002C
rev 8/04
DDAA1000/SRMUser Guide
Table 1: LED Description
Figure 2: Normal User Connection
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Power
Antenna
DATA-LINC GROUP
5
DDAA1000/SRMUser Guide
PN161-09981-002C
rev 8/04
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
Output
1,2,3...,8
Common
DC Supply
+ -
Customer
Supplied
Relay
DATA-LINC GROUP
6PN161-09981-002C
rev 8/04
DDAA1000/SRMUser 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-pointdiscrete operations are bi-directional.An input on the Remotewill activatesame numberedoutput onthe
Master.Acontact closure on an input of the Master will close the output on the Remote on the same contact.
Figure 4: Point-to-Point Discrete Operation Example
Contact Closure Input Contact Closure Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Contact Closure Input Contact Closure Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Dry Contact Closure
DC Supply
+ -
Master Remote
DATA-LINC GROUP
7
DDAA1000/SRMUser Guide
PN161-09981-002C
rev 8/04
Point-to-Multipoint Discrete Operation
A multipoint system will involve two or more remote locations, which may be transmitting contact input information,
providingdiscrete outputsor both.The followingis anexample ofa multipointconfiguration.
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
Contact Closure Input Contact Closure Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Contact Closure Input Contact Closure Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Contact Closure Input Contact Closure Output
8 7 6 5 4 3 2 1 G8 7 6 5 4 3 2 1 G
Dry Contact Closure
DC Supply
+ -
DC Supply
+ -
Master
Remote 0
Remote 1
DATA-LINC GROUP
8PN161-09981-002C
rev 8/04
DDAA1000/SRMUser Guide
Analog Operation
Specifications
1.This unitdoes notprovide looppower todevices.
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 inputs 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
Theseunits arebi-directional, theysend andreceive analoginformation bothdirections. Thefollowing isa commonexample
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
Pwr
4-20mA Input 4-20mA Output
G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8
mA
13.7
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
Master Remote
Note:Aloop power supply may be
needed.TheDDAA1000 unitesdonot
supplylooppower.
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