Hr571 Card - Mitsubishi Electric MELDAS 60 Series Maintenance Manual

1.13 HR571 Card

[Block diagram]
[Explanation of functions]
This is used in the M-NET interface which is one of interface with the sequencer.
TS1 M-NET (RS-422 multidrop)
(Note) The ISP connector and TEST connector on the HR571 card cannot be used.
[Connector layout diagram]
[Explanation of settings]
SW1 (R-TERMINAL)
SW2
[Explanation of LEDs]
Name
RUN
RD
SD
ALM
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1. EXPLANATION OF MODULE FUNCTIONS
RT-BUS
SW2
SW1
TEST
Setting
Terminator (Down: Terminator ON)
Rotary switch (Normal: 0. Refer to the Operation Manual.)
Function
Software operation check
Reception status check
Transmission status check
Communication error
display
search engine
1.13 HR571 Card
CPU
2-port
SRAM
RAM
(32kB)
(8kB)
RUN SD
ISP
RD ALM
Explanation
Status
Color
When During
normal error
ON or
Green Flickers Contact the Mitsubishi Service Center
OFF
Check communication cable connection
Green Lit Not lit
Check rotary switch setting No.
Green Lit Not lit Check rotary switch setting No.
Red Not lit Lit Contact the Mitsubishi Service Center
II-25
TS1
TS1
RTBUS
Correspondence for error