Omron NJ-series User Manual page 639

Appendices
 POU Instance Restrictions
POU instances are subject to the following restrictions. The maximum number of POU instances
depends on the model and unit version of the CPU Unit and the version of the Sysmac Studio.
Maximum Number of POU Instances for the NJ501-
Restriction
Maximum number of POU
instances
Maximum Number of POU Instances for the NJ301-
Restriction
Maximum number of POU
instances
Refer to Number of POU Instances on page A-114 for information on counting POU instances.
Restrictions to Variables
There are restrictions to both variable usage and variable definitions.
 Restrictions to Variable Usage
The usage of variables is subject to the following restrictions.
Maximum total size in Mbytes of variables without a
Retain attribute
Maximum total size
attribute
Maximum number of variables
bute
Maximum number of variables
Maximum number of network variables
*1 The data size of each variable depends on its data type. Refer to 6-3-5 Data Types for the sizes of the data
types.
*2 Refer to Number of Variables without a Retain Attribute on page A-114 for information on counting vari-
ables.
*3 Refer to Number of Variables with a Retain Attribute on page A-115 for information on counting variables.
*4 The restriction depends on the Sysmac Studio version and the unit version of the CPU Unit as follows: Sys-
mac Studio version 1.05 or higher and CPU Unit with unit version 1.04 or later: 5,000
Other combinations: 2,500
 Restrictions to Variable Definitions
Variable definitions are subject to the following restrictions.
A-112
Version
Sysmac Studio
1.05 or lower
1.06 or higher
Unit version/version
CPU Unit
---
1.03 or earlier
1.04 or later
Restriction
*1
*1
in Mbytes of variables with a Retain
*2
without a Retain attri-
*3
with a Retain attribute
CPU Unit model
NJ501-
6,000
9,000
CPU Unit model
Sysmac Studio NJ301-
1.04 or lower
1.05 or higher
CPU Unit model
NJ501-
4
2
90,000
10,000
40,000
NJ-series CPU Unit Software User's Manual (W501)
1,500
2,400
3,000
NJ301-
2
0.5
22,500
*4
40,000