Industrial Control Links
ICL 4130
ICL 4120
February 25,
1997
Summary:
We performed testing between the subject device and
our 3100-MCM product. Our testing generated the following results:
- We were able to successfully communicate with the device. (see below for
configuration parameters used during the testing)
- The product supported Modbus functions 1,2,3,4,5,6 & 16
The
purpose of our testing is to assure a level of compatibility in the
communications between the two products. Through this testing, we attempt to
identify problem areas that may arise when implementing the interface in the
field.
Configuration:
The product testing was performed with the
following settings used:
Baud: 9600
Parity: None
Stop: 1
Mode: RTU Master
Mode
Physical Connection : RS-232
The Module Configuration used in our testing was as follows:
Address 0 1 2 3 4 5 6 7 8 9
N7:0 0 0 5 0 0 0 0 0 0 0
N7:10 1 1 5 0 0 0 0 0 0 0
N7:20 4 1 2 130 150 0 0 0 4 0
This configuration, in combination with the example ladder logic referenced
below, generates the following memory map:
N10:0 to N10:129 - Slave Data
N10:130 to N10:149 - Slave Error Table
(Contains revision level information also)
N10:150 to N10:199 - Master
Error Table (Contains status of commands for diagnostics)
Command List:
The following command list shows some of
the commands which were used to test the communications:
Address 0 1 2 3 4 5 6
Port Slave Function Source Count Dest Read
Number Number Code Address Address Type
N7:50 1 1 1 0 6 0 0
N7:60 1 1 2 0 12 1 0
N7:70 1 1 3 2000 5 2 0
N7:80 1 1 4 0 10 10 0
N7:90 1 1 5 3360 1 0 0
N7:100 1 1 6 200 0 2000 0
N7:110 1 1 15 3360 6 0 0
N7:120 1 1 16 200 5 2000 0
Our test command list perfoms the following functions.
- N7:50 Read digital outputs.
- N7:60 Read digital inputs
- N7:70 Read user area data.
- N7:80 Read 30xxx registers.
- N7:90 Write digital output.
- N7:100 Write to user area.
- N7:110 Write digital outputs.
- N7:120 Write to user area.
Cable Connection:
The physical connection which was used during testing was as follows:
| 3100-MCM Module |
|
ICL 4130 |
| 2 TXD |
-------------------------------- |
Terminal 5 |
| 3 RXD |
-------------------------------- |
Terminal 3 |
| 7 GND |
-------------------------------- |
Terminal 4 |
Note: RTS/CTS (Terminals 4&5)
must be jumpered on the 3100-MCM
Additional Comments and Observations:
- The cable connection for comm 1 is a standard Apple Computer serial cable.
For testing purposes we used a break-out box to jumper RTS/CTS on the 3100-MCM
module.
Reference Material:
The sample logic which we used as a starting point for our testing is
available for downloading:
3100-MCM sample logic for the PLC-5 platform in RSLogix format
3100-MCM sample logic for the PLC-5 platform in 6200 format
3150-MCM sample logic for the SLC-500 platform in RSLogix format
3150-MCM sample logic for the SLC-500 platform in APS format
An application
note focusing on configuring the 3100/3150-MCM in the
Master Mode, closely mimicking our testing procedures, is also available for
review.
Technical Support
For additional information on the test product:
Contact your local INDUSTRIAL CONTROL LINKS representative or:
INDUSTRIAL CONTROL LINKS
Suite 100
Auburn, CA. 95603
Phone:
(800) 888-1893
Facsimile: (916) 888-7017
e-mail: icl@iclinks.com
web site: http://www.iclinks.com/
For assistance with ProSoft products, please contact ProSoft at:
phone: (661) 664-7208
fax: (661) 664-7233
e-mail: mailto:prosoft@prosoft-technology.com
web
site: http://www.prosoft-technology.com/
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