Omron SYSMAC CJ1W-PRM21, Operation Manual

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92
Allocated CIO Area Words
Section 4-2
4-2-4 Master Status 1 (Word n+5)
The Master Status 1 word collects all status information related to the PROFI-
BUS-DP Master function. Any errors related to the PROFIBUS-DP Master
function are collected in the Master status 2 word.
Word n+5 [n = CIO 1,500 + (25 x unit number)]
13 Error log storage
error ON Unit The Error log storage error flag will be turned ON if an error occurred
during an attempt to write the Error log to internal non-volatile memory.
If the error occurred, the Error log data in the non-volatile memory may
be corrupted. Upon a restart the Unit will attempt to repair the Error log.
OFF Unit When set to OFF, this bit indicates that the Error log has been trans-
ferred to the non-volatile memory successfully.
14
to
15 Reserved by sys-
tem --- --- These bits will be set to OFF by the Unit.
Bit Name Status Controlled
by
Unit operation
Word n+5
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Auto-Clear enabled
Unit contains a valid configuration
Unit in OPERATE mode
Unit in STOP mode
Unit in CLEAR mode
Unit in OFFLINE mode
Unit in Data-Exchange
Bit Name Status Controlled
by
Unit operation
00 Unit in OPERATE
mode ON Unit Indicates that the Unit is in OPERATE mode.
In OPERATE mode the PROFIBUS-DP Master Unit will parameterize
all allocated slave stations, and commence I/O Data-Exchange.
OFF Unit Indicates that the Unit is not in OPERATE mode.
01 Unit in STOP mode ON Unit Indicates that the Unit is in STOP mode.
In STOP mode, the Unit will be ONLINE, connected to the network, but
not communicate with its slave stations.
OFF Unit Indicates that the Unit is not in STOP mode.
02 Unit in CLEAR
mode ON Unit Indicates that the Unit is in CLEAR mode.
In CLEAR mode the PROFIBUS-DP Master Unit will parameterize all
allocated slave stations. If this is accomplished successfully, it will read
all input data of the allocated slave stations, but it will send zeros or
empty output messages to all slave stations.
OFF Unit Indicates that the Unit is not in CLEAR mode.
03 Unit in OFF-LINE
mode ON Unit Indicates that the Unit is in OFF-LINE mode.
In the OFF-LlNE mode the Unit will be disconnected from the network.
OFF Unit Indicates that the Unit is not in OFF-LINE mode.