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| Q: What is the maximum distance between a Delphin TopMessage Master and a Slave(s)? |
A: The distance is limited by the length of the interconnecting CAN bus cable which the TopMessage uses for inter-module communication. As standard, this CAN bus network operates at 1 Mb/s and is limited to 10 metres. If longer distances are required, there are two options. - Use another Master instead of a Slave. This moves cable length limits to the LAN which is limited to 100 metres over CAT5 Ethernet cable.
- Use a slower CAN bus data rate. This requires the new slower baud to be specified at time of ordering, please contact sales for further details.
Keywords:
96042937, GBDT , 96042938, GSLT, 96042940, ADGT, 96042941, ADVT, 96042942, ADIT, 96042943, AAST, 96042944, DIOT, 96042945, IOIT, 96042946, OTPT, 96042947, AMDT/V, 96062513, ADFT, 96042965, ProfiSignal Basic, 96052557, ProfiSignal Klicks, 96042966, LabVIEW driver for TopMessage, 96042967, DasyLAB driver for TopMessage.
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| Q: Does DAQFactory work with licenses, and if yes, how many licenses are available in the cost? |
A: Yes, DAQFactory works with licences. Each machine that is use for development needs to be licensed. If more than more machine is used concurrently, a licence will be required for each computer. If machines are not used concurrently, the development licence is transferable using the USB licence key (91052676). For deployment, a development licence can be used, all you need to do is password the program and it will operate as a Run-Time. This is suitable for a single computer application where development and deployment are done on the same machine. To distribute the program to other computers, a run time licence (96042881) is required for each computer. Each copy of DAQFactory, with the exception of DAQFactory Developer (96052675), has a single development licence, and run time licences will need to be purchased for each deployment, the exception to this is on a single computer as described above. DAQFactory Developer however; comes with unlimited run time licences as part of price. The prices for all the licences are on the web site.
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| Q: Can DAQFactory work on several PCs at the same time? |
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| Q: Can DAQFactory be accessed over the internet? |
A: Yes, two copies are required. One copy works as the data acquisition system and is known as the 'Local' connection. Remote computers can then connect to this local machine over an Intranet/Internet.
As an alternative, if control is not required, the data can be viewed on a web browser using DAQFactory's built in Web-Server.
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| Q: How many ioLogik R2000 units can be cascaded with an ioLogik E2000? |
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A: A typical system structure involves multiple ioLogik R2000 units cascaded with one ioLogik E2000 unit, with all units sharing the same power supply from the ioLogik E2000. The key factor that must be considered is the power consumption value. For example:
If your power supply can provide 2A @ 24V and your ioLogik E2000/R2000 requires 200 mA @ 24V for one unit, then you only can connect 10 units with this one power supply
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| Q: What is your new i2o feature for the Ethernet products? |
A: i2o™ technology enables direct input-to-output communication without a controller in between.
Ethernet i2o technology is the easiest way to link your inputs to your outputs without a PLC, PC or master CPU. Many I/O modules now have the ability to operate like a long-distance transmitter. Convert your sensor inputs at Point A to process control signals at Point B. Or, monitor a discrete device at one site by reproducing the discrete level with a relay output at another location.
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| Q: Can I control a Pulse-Width Modulated (PWM) output from a remote device? |
A: Yes, there are two ways of doing this, you can either use an analogue input signal or direct control via Modbus.
1) Voltage/Current control.
Using the Acromag 895M or 896M IntelliPack device, the duty cycle of a PWM output on a predefined base frequency can be controlled with an analogue input.
2) Modbus control.
Utilising the Pulse output feature of Moxa's ioLogik E2000 series, a simple PWM signal can be created with a 0.5 ms resolution per step.
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| Q: How can I connect/isolate two Active 4~20 mA loops? |
A: To connect an Active Loop to the input of an isolator, this input stage needs to be Passive and the input burden or load needs to be small enough so it does not overload the loop.
The requirement for the output stage is the same, it must be Passive as the loop is already Active and the connected circuit loading needs to be small enough not to compromise the device's compliance voltage.
Two devices, depending upon the number of channels required, which may be suitable for this type of application are the Acromag 651T and 652T Isolated Transmitters.
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| Q: Is there a module with an alarm that will close when an input frequency exceeds its set point? |
A: There are several ways of doing this, if a local display is required, a panel meter can be used, if monitoring is required, a Modbus device can be used, and if a blind device is suitable, a frequency controlled relay will be suitable.
1) Panel meter.
The MAG-35-TF-SP21 from Fema has a 3.5 digit display is a 1/8 DIN and two (Form C / Changeover) Relays with hysteresis.
2) Monitored device.
The Acromag 942MB 0900 has two Solid State (Form A / Normally Open) Relays that can be configured as Limit Alarms and has Modbus/RTU connectivity for monitoring.
3) Blind device.
The Acromag 841T 1500 has a single Changeover Relay configured as a Limit Alarm.
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| Q: Is there a module that will select the higher or lower of incoming signals? |
A: Yes, the Acromag 892M-0800 or 894M-0800 Math Modules can easily be programmed to perform a signal selector function. The MIN (n1, n2... n5) expression can be used to return the minimum value of two to five channels, numbers, or expressions. Conversely, the MAX (n1, n2... n5) expression can be used to return the maximum value of two to five channels, numbers, or expression.
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| Q: Is there a solution for a non-linear response curve or the monitoring of only a portion of an incoming analog input signal? |
A: Yes, we offer several products that can perform this function.
First, the Intellipack 801T, 811T and 851T Transmitters offer a linearizer function in the transmitter configuration page of the Acromag Intellipack software package. This will linearize different response curves or select a range for a corresponding output signal. Selecting the linearizer option allows the user to enter up to 25 breakpoints to facilitate up to 24 segments of linearization from input to output. Input and output break points are entered in percent and correspond to 0-100% at the input (scaled value) mapped to 0-100% at the output.
Second, the 89xM math modules have the ability to perform mathematical computations on up to 4 analog input signals and provide an isolated analog output response based on the programmed equation. Individual channel scaling for both inputs and outputs and up to a 200 character equation makes the math module very versatile for complex response curves or transfer functions.
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| Q: Does Acromag's Ethernet I/O products w/ Modbus TCP/IP protocol work in NI's LabVIEW 8.2 using NI's Modbus TCP/IP driver? |
A: Yes, here's a tip for LabVIEW 8.2. When you're using NI's Modbus Driver for LabVIEW 8.2 and reading Acromag's Analog Input Registers (i.e.; Acromag Register Map Address 30013), simply use the last two digits of the register map address and subtract one. For example, if you want to read the channel data at address 30013, type in starting address 30013 in LabVIEW's Modbus Command module.
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| Q: Do you know if National Instruments has a Modbus TCP/IP Driver for LabVIEW 7.1 and 8.2? Will the drivers work with Acromag's Ethernet I/O using Modbus TCP/IP protocol? |
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| Q: Do you have a 'Low Signal Clamp' 4-20mA isolator that will hold the output at 4mA if the input drops below 4mA? Our customer's existing isolator output tracks the input to zero, but our governor will fault whenever the input drops below 2 mA. The isolator |
A: Yes, Acromag has two solutions. They are:
1) Use a Universal V or I Transmitter with a 3 breakpoint linearizer function:
IntelliPack Model 811T-0500, where:
Input= 0-20mA
Output= 0-20mA
Linearizer Setup as:
Input=0%, Output=20%
Input=20%, Output=20%
Input=100%, Output=100%
2) Use a Math Module with a "Max" Function. Also good for CL1Div2 ABCD Locations:
IntelliPack Model 892M-0500, where:
Input (A) = 4-20mA, Scaled 0 to 100%
Output = 4-20mA, Scaled 0 to 100%
Output Equation = MAX(A,0)
[This equation will pass thru Input A or 0% (i.e.; 4mA), whichever is higher]
Both solutions are 4-Wire DC Powered devices with sourced current outputs. For AC power, use Acromag's Universal PS5R-B24 power supply or others in the PS5R family.
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| Q: I have an application involving drum level signals at a power plant. Could one of your Intellipack modules take in three two-wire transmitter inputs and output the median value signal? |
A: Yes, Acromag's Model 894M-0500 Quad Input Math Module should work fine. To pass thru the "Median" value, simply add all inputs together (i.e.; A+B+C) and subtract out the MAX and MIN inputs. Example: Output=A+B+C-(MAX(A,B,C))-(MIN(A,B,C)).
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| Q: How does the Watchdog work in ioLogik 4000? |
A: The watchdog timer function is used to monitor the Modbus/TCP, Modbus/RTU, and Modbus/ASCII connections between the Network Adapter and the host computer. The default setting is "disable". You can select "enable watchdog" to enable the watchdog function. When there are no queries from the host computer over a preset time or there is an I/O module error, the Network Adapter will set all digital output and analog output values to the predefined Safe Status settings
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