Omron 3G8F7-CRM21, Руководство пользователя

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141
Shared Memory Area Specifications
Section B-3
Detailed format
Slave Parameter
The parameter is indicated by the Master Board to the participating Slave
Units.
The parameter is used by the Slave Units.
Normally, no setting is required; however, it is set when the Slave Unit
parameter is enabled. The command OPEN_SYSTEMEX is used to make the
setting.
Data format
Offsetaddress: 0x469C
Detailed format
Name Access Description
Event function
enabling Read/Write 0x0000: Enabled
0x0001: Disabled
The communications cycle becomes shorter
when the Event function is not used. In that
case, explicit messages cannot be sent to Slave
Units or Repeater Units.
Monitoring time of
event addressed to
Slave Units Read/Write This is the time to monitor events addressed to
Slave Units.
Settable range: 0 to 65535ms
(Setting it to 0 will select the default of 2000ms.)
Offset
(Word)
Bit
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
+0 Monitoring time of Slave Unit making a request
+1 I/O time-out value
Name Access Description
Monitoring time of
Slave Unit making a
request Read/Write This is the time to monitor events when a Slave
Unit sends an explicit message.
Settable range: 0 to 65535 ms
(Setting it to 0 will select the default of 2000ms.)
I/O time-out value Read/Write This is the OUT frame monitoring time for a
Slave Unit to detect a communications error. For
Slave Units, the actual I/O time-out value is four
times of the set value.
Settable range:
0 to 50 ms in data rate of 4 M, 3 M or 1.5 Mbps,
0 to 163 ms in data rate of 93.75 kbps:
(When 0 or a value beyond the settable range is
set, it operates at the maximum value of the
settable range.)