ABB AC 800M User Manual

Mounting AC 800M Units onto DIN-Rail Section 2 Installation
54 3BSE 027 941 R301
Unit to Baseplate Alpha Code Lock
Since the units are very similar in design, baseplates have been given a two-part,
pre-set Alpha code locking device that prevents the installation of an incompatible
type of unit onto the baseplate should the Alpha codes not agree. All identical unit
types have the same factory pre-set, two-letter Alpha code installed prior to
delivery.
The following unit types have two-part, pre-set Alpha code locking devices
installed (see Table 6 on page 54).
For further details on pre-set Alpha codes, refer to the relevant unit documentation
(see Related Documentation on page 17).
Care must be taken to ensure that the correct unit is matched with the correct
baseplate, or damage to the equipment will occur. Care must be taken to ensure that
the correct unit is matched with the correct baseplate, or damage to the equipment
Table 6. Factory Pre-set Alpha Codes
Unit Key Position 1 Key Position 2
CI851 PROFIBUS DP
Interface
AA
CI852 FOUNDATION Fieldbus
H1 Interface
AB
CI853 RS232-C Interface A C
CI854 PROFIBUS DP-V1
Interface
AD
CI855 Ethernet interface for
MasterBus 300
AE
CI856 S100 interface A F
CI857 INSUM Interface B A
S800 I/O Units Various – see S800 I/O
Product/User’s Guide
Various – see S800 I/O
Product/User’s Guide

ABB AC 800M Specifications

General

Brand	ABB
Model	AC 800M
Category	Controller
Language	English