Omron NE1A-SCPU01 - 2006 Operation Manual page 96

Remote I/O Allocations
Note
(1) For the NE1A-SCPU01-V1, N = 2 and M = 1. For the NE1A-SCPU02, N
= 5 and M = 2. The sizes of the local input status, test output/muting lamp
status, and local input monitor status data can be specified in bytes.
(2) The measures required for handling data as safety data in the data gen-
eration process will not be executed for status and I/O tag data items with
a non-safety attribute. Therefore do not use those items to configure a
safety system.
Moreover, even if the attribute for an item is "safety," it will become "non-
safety" for data input using standard I/O communications or for I/O tags
connected with standard devices. Therefore, those items must also not
be used to configure a safety system.
If the above data is combined, the I/O data will be configured as follows:
1. When status data is set, the status is allocated at the beginning of the re-
mote I/O area in the order shown below. (Status areas that are not set are
not reserved, i.e., no unassigned areas are left.)
General Status
Local Input Status
Local Output Status
Test Output/Muting Lamp Status
2. When the local I/O monitor data is set (Controllers with unit version 1.0 or
later only), the local I/O monitor data is attached after the other status data
in the following order. (When local I/O monitor data is not set, the data will
be shifted forward and that local I/O monitor area will not be reserved. This
area does not exist in Pre-Ver. 1.0 Controllers.)
Local Input Monitor
Local Output Monitor
3. After the status data and local I/O monitor data, user-registered I/O tags
are allocated in the remote I/O area in the order of registration. At this time,
free areas are not reserved and all valid data is allocated with no unas-
signed areas.
Examples of settings from the Network Configurator are shown below, along
with the remote I/O area arrangements.
Section 4-3
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