28 MULTILIN 489 TO 889 RETROFIT KIT – INSTRUCTION MANUAL
489 TO 889 COMMS AND LOW VOLTAGE ANALOG I/O CHAPTER 4: ELECTRICAL INSTALLATION
Note
Jumper G9 to G15 on 889
Ground the analog I/O on PLC side
Note
Converting the second 485 channel to Ethernet using Multinet is recommended.
Type Function 489 889
Analog Input Input Shield A21 N/A
Analog Input Input +24 VDC A22 N/A
Analog Input Input 1+ A23 G10
Analog Input Input 2+ A24 G11
Analog Input Input 3+ A25 G12
Analog Input Input 4+ A26 G13
Analog Input Input Common - A27 G14
Analog Output Output Common - A16 G8
Analog Output Output 1+ A17 G1
Analog Output Output 2+ A18 G2
Analog Output Output 3+ A19 G3
Analog Output Output 4+ A20 G4
Analog Output Output 5+ N/A G5
Analog Output Output 6+ N/A G6
Analog Output Output 7+ N/A G7
Analog Output Output Shield A21 N/A
Table 4–8: Communications
Type Function 489 889
RS485 Comms + B2 D3
RS485 Comms - B3 D4
RS485 Comms comm B4 D5
RS485 Computer + D25 N/A
RS485 Computer - D26 N/A
RS485 Computer comm D27 N/A
IRIG-B + E12 D1
IRIG-B - F12 D2
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