162 Ethernet module User’s Manual
Chapter 7 RAS Information
7
7.1 Station Status Information
The EN311 status information is displayed on the S controller interface memory and
should be read out to the S controller side using the MREAD instruction.
Each bit of the station status has the following meaning. Note that a register value is
should be used when determining the Initialization mode, Run mode or Standby mode.
• Status area address (word address) --- 16#7EFF (Decimal: 32511)
• Station status format
Bit F: DOWN (down) 1: Down mode,
0: Other than down mode
Bit E: INZ (initialization) 1: Initialization in progress
0: Initialization completed
Bit D: STBY (standby) 1: Standby mode
0: Other than standby mode
Bit C: RUN (run) 1: Run mode,
0: Other than run mode
Bit 5: MTEN (Message transmission) 1: Enabled,
0: Disabled
Bit 4: STEN (socket interface transmission) 1: Enabled,
0: Disabled
Bit 0: TEST (test) 1: Test function execution in progress
0: Test function completed or request
acceptance-waiting state
• EN311 operation modes and station statuses
EN311 Mode Station Status
Initialization being processed (Power-ON, Reset request, Reset SW) 4000H
Standby mode (Initialization processing completed normally) 2000H
Run mode: Message transmission permit 1020H
Run mode: Socket I/F transmission permit 1010H
Run mode: Message transmission; socket I/F transmission permit 1030H
FEDCBA9876543210
000000 000
OWN
INZ
STBY
RUN
MTEN
STEN
TEST
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