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NPN vs NPN Raw Fast
The difference between NPN and NPN Raw Fast is the amount of settling time given to the input. Switch the input
type to NPN if the input is not detecting a transition.
Synchronous Counters
When an input is configured as a counter (inputs set to NPN/PNP), the input counts the input signal transitions. The
count value is stored into two 16-bit Modbus registers for a total count of 32-bits (unsigned). To program an input to
capture the edge transition counts, follow
Example: Configure Input 1 as a Synchronous Counter
on p. 31.
Synchronous counter sample the inputs every 10 ms. The input logic does not detect rising or falling edges, but
instead samples the input every 10 ms to find level changes. The input signals must be high or low for more than 10
ms or the input will not detect transitions. Because most signals are not perfect, a realistic limit for the synchronous
counter would be 30 to 40 Hz.
Example: Configure Input 1 as a Synchronous Counter
1. Connect the DXM to the PC.
2. Launch the DXM Configuration Software software.
3. Connect to the DXM by selecting the
Device
>
Connection Settings
menu option. You may connect using either
USB or Ethernet.
4. Select a COMM port from the drop-down list and click
Connect
.
5. Click on the
Register View
tab on the left part of the page.
6. Change the
Source Register
selection to
I/O Board Registers
.
7. In the
Write Registers
area, write Modbus register 4908 to 1 to enable counting on the rising edge of the input
signal.
8. Read Modbus registers 4910 and 4911 to get the 32-bit value of the count.
Example: Change Universal Input 2 to a 0 to 10 V dc Input
1. Connect the DXM to the PC.
2. Launch the DXM Configuration Software software.
3. Connect to the DXM by selecting the
Device
>
Connection Settings
menu option. You may connect using either
USB or Ethernet.
4. Select a COMM port from the drop-down list and click
Connect
.
5. Click on the
Register View
tab on the left part of the page.
6. Change the
Source Register
selection to
I/O Board Registers
.
7. Write a 3 to Modbus register 3326 on Modbus Slave ID 200 (I/O board).
8. Cycle power to the device.
9. Using the
Register View
tab, read register 3326 to verify it is set to 3.
Example: Change Analog Output 1 to a 0 to 10 V dc Output
1. Connect the DXM to the PC.
2. Launch the DXM Configuration Software software.
3. Connect to the DXM by selecting the
Device
>
Connection Settings
menu option. You may connect using either
USB or Ethernet.
4. Select a COMM port from the drop-down list and click
Connect
.
5. Click on the
Register View
tab on the left part of the page.
6. Change the
Source Register
selection to
I/O Board Registers
.
7. Set jumper 1 on the I/O base board to the 0 to 10 V position. Refer to the base board image for the analog output
jumper position.
8. Write a 3 to Modbus register 4008 on Modbus Slave ID 200 (I/O board).
9. Cycle power to the device.
10. Using the
Register View
tab, read register 4008 to verify it is set to 3.
Sure Cross
®
DXM100-Bx and DXM1000-Bx Wireless Controllers
www.bannerengineering.com - Tel: + 1 888 373 6767
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