Product data

Contents APCI-7xxx-3
5
7.5 Pin assignments (APCI-7420-3 and APCI-7300-3): RS422 with
handshake signals .....................................................................39
7.6 Connection cable – APCI-7500-3 ..................................40
7.7 Connection examples....................................................41
7.7.1 APCI-7500-3 ........................................................................41
RS232 cabling .....................................................................41
RS422 cabling .....................................................................41
RS485 cabling .....................................................................42
Current loop (20 mA) cabling..............................................42
7.7.2 APCI-7300-3, APCI-7420-3, APCI-7500-3/4C .......................44
RS232 cabling .....................................................................44
RS422 cabling .....................................................................45
RS485 cabling .....................................................................45
Current loop (20 mA) cabling..............................................46
7.7.3 APCI-7800-3 ........................................................................48
7.8 Connection examples....................................................49
7.8.1 RS232 cabling ..................................................................... 49
7.8.2 RS422 cabling ..................................................................... 50
7.8.3 RS485 cabling ..................................................................... 50
7.8.4 Current Loop (20 mA) cabling .............................................51
8 TESTING THE BOARD ...........................................53
8.1 Connecting a shorting plug ...........................................53
8.2 Testing the board with the MTTTY program.....................55
RS422, RS232 and 20 mA Current Loop ..............................55
RS485 ..................................................................................57
9 REPLACING THE MODULES..................................58
9.1 Replacing the MX modules ............................................58
10 GLOSSARY.......................................................... 60
11 INDEX ................................................................63