Display Section - Omron CS1W-CRM21 Operation Manual

Master Unit Specifications
2-1-3

Display Section

Communications
Indicators
Indicator Status
MS Lit green
Lit red
Flashing red
Not lit
NS Lit green
Flashing green
Lit red
Flashing red
Not lit
SD
Lit yellow
Not lit
RD
Lit yellow
Not lit
Seven-segment
Display
The following LED indicators are provided for communications.
MS (Module Status): Shows the status of the node itself. (Two colors: green
NS (Network Status): Shows the status of communications. (Two colors:
SD (Send Data):
RD (Receive Data): Shows Master Unit reception status. (One color: yellow)
Status definition
Normal
Fatal error
Non-fatal error
Power OFF/Preparing
Online, with remote
I/O communications in
progress
Online, with no remote I/O
communications in progress
Fatal communications error
Non-fatal communications
error
Power OFF/Preparing
Normal transmission
No transmission
Normal reception
No reception
The indicator flashing intervals are approximately 0.5 s lit and 0.5 s not lit.
• The seven-segment display shows the baud rate during normal transmis-
sion.
It lights while remote I/O communications are in progress and flashes
while they are stopped.
• When a communications error occurs, the following information is dis-
played in order: Error code (2 digits hexadecimal) - Type of Slave Unit at
error node - Node address (2 digits decimal).
• When an error other than a communications error occurs, the error code
(2 digits hexadecimal) is displayed.
and red)
green and red)
Shows Master Unit transmission status. (One color: yel-
low)
Meaning
The Unit is operating normally.
Unit hardware error, such as a watchdog timer error (WDT)
Communications mode number or unit number setting error
Power OFF, resetting, or initializing
Power is being supplied, remote I/O communications have
started, there are no communications errors at any Slave Unit
or Repeater Unit, there are no Registration Table errors, and
there are no node address duplication errors for Slave Units
or Repeater Units.
Remote I/O communications have not started or have
stopped (for a reason other than a communications error).
An error has occurred in the communications circuit.
A communications error has occurred at one or more Slave
Units or Repeater Units.
A verification error (non-existent or unregistered Slave Unit)
has occurred at one or more Slave Units.
Communications have stopped due to a communications
error.
An illegal configuration error (number of Repeater Units) has
occurred.
An address duplication error has occurred at one or more
Slave Units or Repeater Units.
Power OFF, resetting, or initializing
Frames are being sent normally from the Master Unit.
The Master Unit is not sending data.
Frames are being sent normally from a Slave Unit.
The Master Unit is not receiving data.
Section 2-1
37