In America and Canada, it is possible to restrict the frequency hopping of the U to only the high or low band. If there are many U systems in the same area, this technique will help to separate systems to avoid radio interference.
Page Indicating A Communications Problem Chapter Three Operation receive an update or change message every 10 minutes, and it has not received a message within this time, then some form of failure is likely. If the output is controlling some machinery, then it is good design to switch off this equipment until communications has been re-established. Page Testing And Commissioning 2. Mal-operation, or operating when not requested. The U modules use frequency encoding and a very secure addressing system to ensure this does not occur.
An additional security level using data encryption can also be selected. Inputs to one product type can be transmitted to outputs of another product type. If so, no configuration is required.
Essentially, all inputs at Module A are reflected at the corresponding outputs at Module B. Module 7 is used as a repeater. Page 41 Chapter Four Configuration setup stage. The Initial screen will appear. The configuration is performed for a complete system. Page 42 U-1, S-1 or a U The program will ask to select the unit address and will display the list of available addresses for you to select.
For U modules, select an address between 1 and For S modules, select an address between 96 and Page 43 Chapter Four Configuration Configuring an individual module Double-click on a unit shown on the left-hand menu. The configuration options for each unit will appear. Select the input to be mapped. Select any intermediate repeater units needed to reach the destination address entered in order of nearest to furthermost repeater.
Page 47 Chapter Four Configuration Debounce Configuration Debounce is the time which input must stay stable before the module decides that a change of state has occurred. The display also shows the maximum and minimum values. For the -1, -2 and —3 modules, the maximum update time is 16 minutes, however the update time for -4 inputs can be up to 5 days. For input signals which vary widely over a short period of time or have a normal oscillation, the analog sensitivity should be set to an appropriately large value.
This configuration actually divides the input count It should be configured to correspond to the pulse input update time for the corresponding pulse input. If you are adding additional mappings to a U-C or U-G module, then you need to change the archived configuration files first so you can download the modified configuration details into the U-C or U-G 4. This ensures that the archived files are always maintained and accurate.
If you modify the configuration of a module by uploading and then downloading, then the module configuration will be different then the archived files. But it does make it very difficult for someone to interfere with the U system - difficult to the point where there would be many easier alternate ways to cause malicious damage. As the S modules are connected by RS, the S modules can be separated from the U modules by some distance.
There can be up to 32 addresses on the one RS multi-drop link. Note that each —3 and —4 module takes up 2 addresses. For example, you could have up to 32 modules sharing a multi-drop link if they are all —1 or -2 modules - if they are all Page 56 Example 2 - Mapping to a remote U. In this example, a S-2 is connected to U-1 8. DI1 is mapped to a remote U-C module.
The U that is connected to the S module acts as a repeater - a serial-to-radio repeater. Page Self Test Functions If a module does not pass its self test function, then it should be returned to an authorised service agent for attention 6. Page 65 Chapter Six Troubleshooting The diagnostics functions can be accessed from the E Series Config software - the same software package used to configure the modules.
Connect the laptop or PC to the module using a configuration RS cable. Inputs This option provides a dynamic display of the status of all of the inputs in the U, both internal and external.
Page 69 Chapter Six Troubleshooting below to check the path between two units. Comms This function allows monitoring of all messages transmitted and received over the radio. Page Comms Logging Chapter Six Troubleshooting example, if the radio test is done during winter and the radio path is through trees without leaves, then another 10dB of margin should be allowed for to cover summer conditions when the trees have leaves. When using directional antennas i. YAGI antennas this feature may be used to peak the received signal level.
Both units will need power supplies and antennas. The power supply for the mobile unit is normally a 12V battery, but make sure that the battery is fully charged - batteries with low voltage will lead to low radio power which will affect the test result. Page 74 2. Change one or both antennas to a higher gain if regulations allow.
Use a shorter coaxial cable between the antenna and the U. Page Appendix Asystem Example A U-1 module is installed at the pump station with address 1 and a U-2 module is installed at the tank station with address 2. Because the signal cable to the control station does not have enough cores for all of the signals required, the signal cable is used as a RS cable and a S-3 module is installed at the control station with address Page 77 There was an existing electrical enclosure at the pump station, and the U module was installed inside this enclosure.
Page 79 "divide by 10" for Hz pulse signals. The analog debounce has been set to 2 sec. This is because of concern of wave action on the surface of the tank causing un-necessary change transmissions. Its pulse output update time is the same as the PI update time at the remote module both have been left at their default value of 1 minute. This manual is also suitable for: u-g u-c u-k u-d s. Print page 1 Print document 85 pages. Rename the bookmark. The analogue outputs are filtered with a 1 second time constant.
An example explaining the interaction of these figures is shown below. Page 28 This ensures that no pulses are lost due to communications failures. If the PI is transmitted to a U-C interface module, then the accumulated pulse count is stored in the U-C for interfacing to the host device. High set point and low set point levels are configurable. This set-point status turns ON when the analogue input moves below the low level, and turns OFF when it moves above the high level. Each U module has a radio path testing feature - refer to section 6.
Fail to transmit alarm. It is much easier to find a configuration problem. When the system is configured, record the radio signal strength and background noise level for each radio link. Page Chapter Four Configuration The four different products in the range can be used together in the same system, as well as U-C and -G modules. Inputs to one product type can be transmitted to outputs of another product type. For example, an analogue input to a may be transmitted to an analogue output of a or Page Easy Configuration Using Default Settings Chapter Four Configuration In addition to these network configurations, operational parameters called User Options may be configured to change the features of the operation.
Easy Configuration Using Default Settings If your application requires only a single pair of modules, communicating via radio or serial link, default settings may satisfy your needs. Module 7 is used as a repeater. EXE The Initial screen will appear. The necessary configuration stages are : " Select the type of module from the list.
The programme will ask you to select the unit address. For U modules, select an address between 1 and For S modules, select an address between 96 and Page 41 Chapter Four Configuration Configuring an individual module Double-click on a unit shown on the left-hand menu. The configuration options for each unit will appear. Page 43 Chapter Four Configuration It is possible to map a digital input analogue output - the output will be maximum value when the input is on and minimum value when the input is off.
It is also possible to map a analogue input to an digital output output will be on when Each remote module has a separate comms fail status - you enter a separate comms fail mapping for different remote addresses. Page 45 Chapter Four Configuration Update Time Configuration Update messages are sent if a change message occurred within the update time period.
The update time may be set for each input - both physical and internal inputs. The default period is 10 minutes for all inputs, except for pulse inputs 1 minute. We recommend that the reset time be a little more than twice the update time. Page 47 Chapter Four Configuration Debounce time operates on the set-point status in the same way as digital inputs.
Pulse Output Update Time Configuration pulse output The compile function scans configuration and reports any detected errors. If you are adding additional mappings to a U-C or U-G module, then you need to change the archived configuration files first so you can download the modified configuration details into the U-C or U-G 4. If you have entered a password, then this password will need to be entered if the configuration is to be changed later.
You can view the configuration, but you will not be able to make any changes. As the S modules are connected by RS, the S modules can be separated from the U modules by some distance. There can be up to 32 addresses on the one RS multi-drop link. Note that each —3 and —4 module takes up 2 addresses. Page 53 Example 2 - Mapping to a remote U. In this example, a S-2 is connected to U-1 8. DI1 is mapped to a remote U-C module.
The U that is connected to the S module acts as a repeater - a serial-to-radio repeater. Connect the module ensure the RS port is disconnected first to the PC using the same serial cable used for configuration.
P CNT is the current value of the pulsed input counter. Page 65 Chapter Six Troubleshooting successfully. Although a pair of units may communicate successfully, radio communication may be affected by a range of influences, including atmospheric conditions, changing landscape, degradation of antennas or co-axial cable, low battery voltage etc.
The display will show radio messages transmitted and received. Your purchase is guaranteed against defects for a 2 Year warranty period, commencing from the date of purchase. This warranty does not extend to: Failures caused by the operation of the equipment outside the particular product's specification. Page Appendix A System Example A U-1 module is installed at the pump station with address 1 and a U-2 module is installed at the tank station with address 2.
Because the signal cable to the control station does not have enough cores for all of the signals required, the signal cable is used as a RS cable and a S-3 module is installed at the control station with address Page 70 "hear" other radio users on the same radio channel which generally use vertical polarity. There was an existing electrical enclosure at the pump station, and the U module was installed inside this enclosure. Page 72 Note that no comms fail reset time has been configured for DO1.
As this output drives an indication only, the indication will show the last correct status even during communication failures. In the event of a system failure, the digital outputs will stay at their last correct status, but the analogue outputs will reset to 0 mA. This manual is also suitable for: s. Print page 1 Print document 78 pages. Rename the bookmark.
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