Now developer and IoT ready with a built-in HTTP/HTTPS server and RESTful API. See Programming, below.
** Compatible with
groov EPIC. You can control groov EPIC I/O units with a SNAP PAC S-series controller running
PAC Control R10.a or higher. **
The SNAP-PAC-S2 programmable automation controller provides powerful, real-time control and communications to meet your industrial control, monitoring, and data acquisition needs.
Part of Opto 22's S-series family of industrial controllers, the SNAP-PAC-S2 is fully integrated with PAC Project software, SNAP PAC I/O processors, and SNAP I/O modules to form a complete control system. The SNAP PAC System includes digital and analog control, serial string handling, PID loops, and enterprise connectivity.
Programming
The SNAP-PAC-S2 is programmed using the included PAC Control software. PAC Control is a flowchart-based tool for developing control applications, or
strategies. You create and debug the strategy on your computer and then download it to the PAC, where it runs independently.
REST API: All I/O point and strategy variable data is available for secure access using the built-in HTTPS server and RESTful API, with data delivered in JSON format. For complete API documentation and steps for getting started, see
developer.opto22.com. In addition, two Node-RED nodes are available. Note that minimum
firmware R9.5a and
PAC Project R9.5a are required to use the REST API.
You can build full-featured operator interfaces (HMIs) using the included PAC Display software, which taps the same tagname database you've already developed in PAC Control. SNAP PAC S-series controllers are also compatible with Opto 22's
groov products and
groov View HMI tool.
Networking
The controller is compact and industrially hardened. It includes two independent Ethernet network interfaces with separate IP addresses, which can be used to segment the control network from the company network or for redundant Ethernet network links.
The SNAP-PAC-S2 controller is well suited for use with serial-based I/O units and serial devices. The SNAP-PAC-S2 has four serial ports that can be individually configured as either RS-232 or RS-485 (2-wire or 4-wire). Configured as RS-232, serial ports support serial device communication or a Point-to-Point Protocol (PPP) modem connection for creating a TCP/IP network over PSTN (Public Switched Telephone Network) lines. Configured as RS-485, serial ports connect to SNAP PAC Serial brains or to legacy Opto 22 mistic™ I/O units, including the serial B3000 brain and remote mistic bricks. (Note: If you are using the S2 with
misticI/O units, use the legacy versions of the PAC Control, PAC Display, and PAC Manager guides.)
The SNAP-PAC-S2 can be panel or DIN-rail mounted. For DIN rail, see the
SNAP-S2DIN DIN-rail mounting kit.
If you need fewer serial ports, see the
SNAP-PAC-S1.
To compare controller features, see the
SNAP PAC Controller and Brain Comparison Chart.
For more details, see the Specifications tab and the Data Sheet.