| The Allen Bradley CompactLogix controllers use | | | | Controlnetm and Ethernet |
| the same programming and program organisation | | | | All CompactLogix controllers provide you with the |
| as the ControlLogix systems but utilise Allen | | | | following features and functionality: |
| Bradley 1769 MicroLogix 1500 system I/O and | | | | 3-position key switch. |
| communications options. Their memory space is | | | | Battery backed memory. |
| smaller than the ControlLogix systems but it is | | | | Channel 0 default RS232 communication. |
| more than adequate for medium sized PLC | | | | Built-in RS-232 port. |
| applications. | | | | Diagnostic LED's. |
| The Rockwell CompactLogix controllers provide a | | | | Integrated Compact/1769 Bus. |
| solution for smaller, machine-level control | | | | All of the processors in the range have these |
| applications, requiring a low-cost, modular solution. | | | | functions other processors have an extra serial |
| The CompactLogix system is also configured and | | | | port, Ethernet port or ControlNet port. |
| programmed with RSLogix 5000. | | | | All the Allen Bradley CompactLogix PLC |
| Allen Bradley CompactLogix PLC systems use the | | | | processors have RUN-REM-PROG Key switch has |
| same Logix control engine as the rest of the | | | | the following functionality.RUN - PLC in RUN mode |
| Logix series controllers. This means CompactLogix | | | | no edits possible. REM - PLC in remote mode |
| supports the Logix instruction set, task | | | | control of the processor and remote |
| configuration and data tags. | | | | programming available using RSLogix 5000. PROG |
| The multi-tasking operating system supports 4, 6, | | | | - PLC in STOP or Program mode, program |
| or 8 configurable tasks (depending on the | | | | changes can be downloaded. |
| processor) that can be prioritized for executing | | | | Allen Bradley CompactLogix Local I/O allows one |
| the program code according to the application. | | | | additional bank of I/O modules can be added to a |
| Tasks can contain up to 32 programs, each | | | | CompactLogix system. The first bank includes the |
| containing separate routines. | | | | CompactLogix controller in the far left position. |
| Symbolic addressing using tags is used to identify | | | | Each bank requires its own power supply and the |
| data by its use in the application, independent of | | | | controller must be within four slot positions of the |
| the hardware. You can create libraries of standard | | | | power supply. A maximum of one controller may |
| routines that can be re-used on multiple machines | | | | be used in a CompactLogix system. |
| or applications. | | | | The system above has a main bank consisting of |
| The Allen Bradley CompactLogix PLC system also | | | | a processor, 2 I/O cards, a power supply and 2 |
| provides you with peer-to-peer communications | | | | more I/O cards. The second bank also has 2 I/O |
| to other devices via the following communication | | | | cards, a power supply and 2 more I/O cards. |
| interface devices, DH-485, DeviceNet, | | | | |