Yaskawa Modicon 800 Series Remote I/O Network for use on Microtrac LAN - Manual (Page 7)

2 HARDWARE
6 80188 CPU Single Board Computer
5/24/96
A MicroTrac Hub Card is needed whenever the MicroTrac LAN contains more
than eight nodes. As an example, if you had nine nodes and one gateway
node, the LAN would need a hub card.
80188 CPU
Single Board
C o m p u t e r
Table 3. 80188 CPU Single Board Computer Setup
J1 RS-232 communications port that is enabled by jumper E1
Connectors J2 RS-485 communications port that is enabled by jumper E1
J3 SBX expansion connector for SBX modules (ARCnet, floppy drive)
Switch SW push-button switch used to reset CPU card
ROM0 64K EPROM contains Modicon interface software
ICs ROM1 64K EPROM contains PLC gateway software
math 8087 math coprocessor used to improve floating point
conversions
display display
four character
used to display PLC gateway status
alphanumeric display
enables either RS-232
RS-232 RS-232 (default)
E1 or RS-485
communications port
RS-485 RS-485
Jumpers E2 connects a 3.6V when installed default = no jumper
E3 enables/disables en enabled
i/o channel check dis disabled (default)
M i c r o Trac Hub
Card (optional)
RD 3004-20