System Limits of PLCnext Engineer
| Item (no. of ...) | Limit |
|---|---|
| Controller per project (PLANT) | 1 |
| Program instances per non-safety-related controller | depends on controller type |
| Program instances per Safety PLC | 1 |
| User tasks per non-safety-related controller | depends on controller typeAXC F 2152: 16 |
| Safety-related tasks per Safety PLC | SafetyProxyTask only |
| Program instances per non-safety-related task | depends on controller typeAXC F 2152: 500 |
| Safety-related program instances in SafetyProxyTask | S_Main only |
| Global variables per controller | 40000 |
| Instance-related variables per controller | limited by no. of global variables |
| Local variables per POU | 5000 |
| Number of parameters per function | 31 including return value and ENO output i.e., 29 user-defined inputs max. |
| Number of parameters per method | 31 including return value if it is not void. |
| Referenced libraries per project | no limitation |
| Local POUs per project (without POUs from included libraries) | 4000 |
| Code worksheets per POU | 20 |
| Code elements per POU | 50000 |
| Graphic code: elements per code worksheet | 5000 |
| Graphic code: number of connections in a multiline connection (connections of n objects to n objects) | 50 |
| Graphic code: jumps and labels per POU | limited by no. of code elements per POU/worksheet |
| Graphic code: jumps and returns per POU | |
| SFC steps per POU | |
| SFC transitions per POU | |
| SFC transition details per project (PLANT) | |
| SFC action details per project (PLANT) | |
| SFC actions per POU | |
| Contacts / coils per POU | |
| Nesting level of POU groups | 3 |
| Length (in characters) of variable names | 90 |
| Length (in characters) of string constants | limited by string definition |
| I/Os per project | 131072 / 128 KB |
| Variable subscriptions in the LOGIC ANALYZER | 16 |
| Length (no. of characters) of an hierarchy entry | 90 |
| Comment length | Number of characters
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