Instruction manual

NGA 2000 MLT Hardware
TECHNICAL DESCRIPTION
1 - 40
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
PCB ACU
1.10.6 ACU
The ACU 02 board is the main part of the MLT both Analyzer Module or Analyzer!
It is a one-board CPU card.
All user data are safe loaded via a battery buffer, even when the voltage supply is disconnected.
This card contains the complete software for controlling and operating the analyzer module.
For MLT analyzers (with operation front panel) additional the Control Module Software [platform
(CM) functions (network managment, LCD display control e. g.)] is included.
The board contains the following function blocks:
◆ 32 / 16-bit micro controller
◆ Floating point co-processor
◆ dependent on platform version different RAM / Flash-EEPROM
(Standard: 1 MB RAM extension for up to 15 software channels
*)
; Option: additional 0.5 MB RAM extension
if more than 15 software channels
*)
[contact factory if more than 20 SW channels are requested])
◆ Real-time Clock with
Calendar function
Alarm function
◆ Watchdog function
◆ Serial interface RS 232 C
◆ A network interface with ECHELON chip
◆ System bus:
Parallel bus A6 : D8
12 TPU wiring
network bus
Synchron serial bus
◆ Buffered parallel interface for LCD control
◆ Local bus interface (e.g. storage extension)
◆ Switch-mode power supply for 5 V supply (on board)
*) Calculate software channels (SW) as follows: MLT = 1 SW ch. for each mesuring channel;
all other NGA analyzer modules like CLD, FID, etc. = 1 SW ch.; SIO/DIO = zero SW ch.; Network I/O's = 1/2 SW ch.