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Chapter 4 ‐ Using PathWare
Using Device Net Analog Outputs with PathWare
Using Device Net Analog Outputs with PathWare
Pathware supports the use of two (2) 12 bit 0 – 10 volt DC analog outputs to control proportioning dispense valves. In its standard configuration Pathware uses only one (1) of these outputs. The other output, if supplied, is available for connection to a second proportioning dispense valve if desired. However, the user must customize the routine ‘dm.gun.standard’ to access this output. Using analog outputs requires the following user supplied DeviceNet hardware from Beckhoff (www.beckhoff.com):
-BK5200 DeviceNet Bus Coupler
-KL4001 Single Channel or KL4002 Dual Channel (if 2 channels are being used)
Analog Output Terminal
-KL9010 Bus End Terminal
Note that the above hardware list assumes an independent Beckhoff DeviceNet node. If your system already contains a Beckhoff BK5200 DeviceNet Bus Coupler you need only add the KL4001 or KL4002 Analog Output terminal to that node. In order to access the DeviceNet analog I/O from the Adept controller you must first configure both the Adept controller and the BK5200 Bus Coupler. The following procedure explains this process. The configuration process assumes that you have no other DeviceNet hardware on the DeviceNet bus and that the Beckhoff block contains only the KL4001 or KL4002 Analog Output terminal or this terminal is the first ‘byte’ oriented terminam to the right of the bus coupler. If you have additional DeviceNet hardware present or you are adding the Beckhoff analog output terminal to an existing node the process remains generally the same. However, the configuration parameters may differ from those in the following example. Configuring the Beckhoff analog I/O for use by the Adept controller
To configure the Beckhoff DeviceNet analog I/O for use by the Adept controller follow the below
listed procedure.
1. Assemble, install and wire the Beckhoff BK5200 Bus Terminal, KL4001 Analog Output Terminal and KL9010 Bus End Terminal in accordance with the manufacturer’s instructions. Set the eight (8) DIP switches on the BK5200 Bus Coupler as follows:
1, 8 = on
2, 3, 4, 5, 6, 7 = off
This corresponds to a node MACID of ‘1’ and a network speed of ‘500K’ baud.
(see also the ‘Adept MV Controller User’s Guide or the Adept SmartController User’s
Guide for information on connecting to Adept DeviceNet)
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