ABBAC 800M Controller Hardware

always be used for PM861/PM864/PM865/PM866 when running in single 

configuration. When a redundant processor is running in a single configuration use the RCU Link Cable TK851, if the RCU Link Termination plug 

TB852 is not available.

SPECIFIC

WARNINGS 

(continued)

Page 124: The CI862 baseplate has no locking device. Insert only the 

CI862 unit into this baseplate. Insertion of other unit types may cause 

damage to the equipment.

Page 191: Before attempting maintenance or troubleshooting, read the 

Safety Summary on page 13. Failure to do so could lead to personal 

injury or damage to equipment.

Page 198: It is not allowed to manipulate CEX bus baseplates in a powered and running system. Before changing or removing a baseplate, all 

CEX modules on that segment must be removed.

Page 429: Explosion hazard - Substitution of components may impair 

suitability for Class I, Zone 2.

Page 429: Explosion hazard - Do not replace batteries unless the power 

has been switched off or the area is known to be non-hazardous.

Page 430: Explosion hazard - Do not disconnect equipment unless the 

power has been switched off or the area is known to be non-hazardous.

SPECIFIC

 CAUTIONS

Page 68: To prevent damage to the pins, be sure the baseplate plugs and 

sockets are fully aligned as the units interconnect. Under no circumstances use excessive force!

Page 68: It is essential that the locking device be placed in the LOCKED 

position to avoid possible problems caused by vibration and/or intermittent 

grounding.

Page 73: In order to provide adequate access and removal space, note 

that the SLIDE sequence must be carried out on the unit baseplates adjacent to the unit that is to be removed.

Page 73: The unit baseplates are easily disconnected from each other by 

gently prying them apart with a blade screwdriver (see Figure 23 on page 

74).

SPECIFIC

 CAUTIONS 

(continued)

Page 76: Do not manipulate the locking device. ABB will take no responsibility for errors caused by manipulating locking devices.

-79 and Page 92: Do not place the internal back-up battery in the battery 

holder until the AC 800M Controller has been powered-up normally and 

the memory back-up function has been activated, that is, the B(attery) 

LED flashes. If no normal power supply is connected to the processor unit 

with the battery in place, then the CPU memory will immediately start to 

consume battery power.

Page 90: Note that in redundant CPU configuration, COM3 and the electrical ModuleBus on the baseplate can not be used.

Page 91: Note that the RCU Link Cable TK851 must be used and can not 

be replaced by a similar cable. Using another cable will disable the identification of the CPUs in the CB and Operator Station. When running in single configuration the RCU Link Cable TK851 might temporarily be used to 

perform the function of a termination plug.

Page 98: Do not connect the two CEX-Bus segments, separated with 

BC810, to each other with CEX-Bus extension cable TK850.

Page 98: In AC 800M High Integrity Controllers it is required that the external supply input of BC810 is connected and that the power supply is 

strictly configured either according to Figure 33 or according to Figure 34 

and nor is it allowed to change the configuration by way of for instance 

individual circuit breakers between modules.

Page 99: Hot swap of the BC810 located next to a primary or single controller CPU, otherwise called “direct BC810”, might jeopardize the whole 

controller and should not be performed unless every module on the 

CEX-Bus are in a non-operating state. Note: In an AC 800M HI controller 

this is unconditionally and intentionally leading to a shutdown of the controller.

Page 112: It is not possible to change the CI851 unit via hot swap and it is 

not allowed to perform an online upgrade of firmware in a system containing CI851.

SPECIFIC

 CAUTIONS 

(continued)

Page 114: It is not possible to change the CI852 unit via hot swap and it is 

not allowed to perform an online upgrade of firmware in a system containing CI852.

Page 118: Hot swap is supported for CI854A (not CI854).

Page 133: – 115 V for 110–120 V AC – 230 V for 220–240 V AC 

(default position on delivery).

Page 141: To avoid error indications from SA/SB when single power supply is used, it is recommended to connect the input terminals SA/SB on 

the CPU to +24 V, see Figure 47.

Page 143: Do not connect the TK821V020 cable until the AC 800M Controller has been powered-up normally and the memory back-up function 

has been activated, that is, the B(attery) LED flashes. If no normal power 

supply is connected to the PM8xx processor unit, the CPU memory will 

immediately start to consume battery power when the cable is connected.

Page 157: When setting the IP address of the primary CPU in Control 

Builder, the backup CPU must be turned off (powered down). Otherwise 

the backup CPU will take over and you get disconnected.

Page 159: Note that the electrical ModuleBus can only be used for connection of S800 I/O when AC 800M is running in single CPU configuration.