ICP DAS has presented the Linux based Win-GRAF programable automation controller RPAC-2658M. Win-GRAF supports IEC 61131-3 languages enabling development of PLC algorithms using LD, ST, FBD, SFC and IL industrial languages. Linux Kernel 4 capabilities can used to develop GCC 5.4.0 (C, C++) programs.
RPAC-2658M is equipped with a quad-core ARM Cortex-A9 CPU (1 GHz), 1 GB DDR3 RAM and 8 GB eMMC Flash, which is normally sufficient to solve process automation, data acquisition and dispatching tasks.
The microSD slot enables memory extension up to 32 GB. The RPAC-2658M is supplied with a pre-installed 4 GB microSD. Interaction with different I/O modules is provided via: 3x GLAN, 2x USB and 3x COM.
The PLC metal casing has the ingress protection rating IP30 and can be used in a wide operating temperature range of –25 to +75 °C.
The RPAC-2658M can also be used in PCSs with internal redundancy. Here is an exemplary redundancy scheme with two RPAC-2658M PLCs connected to the redundant modular system iDCS-8830 with Ethernet. iDCS-8830 enables the redundancy of I/O, power and communication modules, and Modbus/TCP interface is provided for communication.
Basic specifications of the RPAC-2658M PLC:
| Model | Description |
|---|---|
| CPU | ARM Cortex-A9, 1 GHz, quad-core |
| RAM | 1 GB DDR3 SDRAM |
| Flash | 8 GB eMMC |
| Storage | 4 GB microSD card (up to 32 GB) |
| Real Time Clock (RTC) | Yes |
| Watchdog time | Yes |
| I/O ports | 3x GLAN, 2x USB 2.0 (host), 1x RS-232, 1x RS-485, 1x RS-422 |
| Casing material | Metal |
| Dimensions | 42 x 164 x 129 mm |
| Ingress protection rating | IP30 |
| Operating temperature | –25 to +75 °C |
| OS | Linux Kernel 4.1.15 |
| Win-GRAF software | IEC 61131-3 standard, LD, ST, FBD, SFC, IL languages, max. code size 2 MB, scan time 1 to 15 ms for normal programs and 15 to 50 ms for complex programs |
| Non-Win-GRAF programming | GCC 5.4.0 (C, C++) |
| Communication protocols | Modbus TCP Modbus RTU/ASCII DCON |
