J892 DIP Switch Settings for ASCII Devices
(Original Document)
About us
DIP Switch Location
J892 Interface devices have an additional set of DIP switches located at the back of the module for setting ASCI device addresses and ASCII communication parameters. If you want to support ASCII devices at this drop, the ASCII switch setting must be made before the module is installed in the I/O housing.
Interface Rear View
Rear view of J892 interface.
Switch Settings
The drop address DIP switch has eight positions.
Switch positions for ASCII device settings.
Switches 3 ... 6 are used to set ASCII device addresses on the RIO network. The remaining switches are used to specify ASCII communication parameters.
Switch Settings for ASCII Communication
Switch settings for ASCII communication
Switches
ASCII Communication Function
1
RS-232C handshaking for the bottom ASCII port
1 = Data terminal ready/hardware handshake
0 = XON/XOFF
2
RS-232C handshaking for the top ASCII port
1 = Data terminal ready
0 = XON/XOFF
3 ... 6
Port address 1 - 32
Device addressing in pairs
7
Continuous confidence test mode*
1 = Local diagnostic (J892 will not communicate when set to 1 position (left))
0 = On-line (Normal setting)
8
Not used, always set in the 0 position (right)
Mapping Switch Settings for ASCII Device Addresses
Switch settings for ASCII device addresses
Switches
3
4
5
6
ASCII ports address
1, 2
0
0
0
0
3, 4
1
0
0
0
5, 6
0
1
0
0
7, 8
1
1
0
0
9, 10
0
0
1
0
11, 12
1
0
1
0
13, 14
0
1
1
0
15, 16
1
1
1
0
17, 18
0
0
0
1
19, 20
1
0
0
1
21, 22
0
1
0
1
23, 24
1
1
0
1
25, 26
0
0
1
1
27, 28
1
0
1
1
29, 30
0
1
1
1
31, 32
1
1
1
1