ABB DCS800 Firmware Manual

DCS800 Firmware manual supplement for North America (rev. 2.60, 2.70) Rev. b 5/30/2008
15
bits in a word, usually setting them all to 1 (TRUE) or 0 (FALSE). The firmware uses the
defined bits in the control words to perform important functions. Undoing the good work of
the firmware with your AP program is bound to cause trouble.
This means that, in many cases, the last block you will use in your AP program will be a
BSet block. Here is an example:
In this example, the block is toggling bit 11 of the MainCtrlWord (7.01) according to the
state of 84.09.0, leaving the other MainCtrlWord bits as they were before. The modified
copy of the MainCtrlWord is written to parameter 84.15. To complete this process, the
output must be set as follows:
This will direct the program to write the value of block 2 output (84.15) to parameter 701
MainCtrlWord (7.01). This all happens very quickly. The result will be that the value of bit
11 while change, but the other bits will remain intact.
For additional information
See the DCS800 firmware manual:
• Page 67 – 75 Adaptive Program Instructions
• Page 76 – 98 Adaptive Program Function Blocks

ABB DCS800 Specifications

General

Control Type	Digital
Supply Voltage	380 ... 690 V AC
Input Voltage Range	380 V to 690 V AC
Control Mode	Torque, Speed
Cooling Method	Air-cooled
Communication Protocols	Modbus, Profibus, CANopen
Communication Options	Ethernet
Protection Class	IP21, IP54
Enclosure Rating	IP00, IP21, IP54
Protection	Overcurrent, Overvoltage, Overtemperature
Ambient Temperature	0 to 40°C
Field Supply	Integrated or External