Yokogawa GC1000 Mark II Process Gas Chromatograph - Manual (Page 7)

<1. Outline>
1-1
IM 11B06F01-01E
1. Outline
ASIU is a component designed for Ethernet analyzer bus system. It is realized with the I/O unit
software on FCN hardware.
ASIU is equipped max. 3 sets of I/O card and transfer I/O information to outside by two type inter-
faces: Modbus TCP Ethernet one port and Modbus RTU serial.
Modbus mapping is realized with address table and programming is not necessary.
FCN is described as ASIU is in this document.
F0101.ai
Ethernet (Redundancy is available)
Modbus TCP
Serial
Modbus RTU
AI
DO
DI
CPU Power
Empty slot
Space
Figure 1.1 System Configuration
Network : Ethernet (Redundancy is available. Port-1 is used on the single communication),
Serial (RS-232C)
Power card: Single
CPU card : Single
DI card : 1 pc (Read up to 16 points)
DO card : 1 pc (Read and write up to 16 points)
AI card : 1 pc (Read and write up to 16 points)
4th Edition : Nov. 22, 2011-00