ROC312 Remote Operations Controller
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The unit is available either in a standard version (Class I, Division 2 approval) or in a Measurement Canada version, which includes Class I, Division 2 approval.
The ROC312 uses a single-board design that places the main circuitry, including five process inputs and two process outputs (I/O), on a common circuit board. In addition, the ROC312 can accommodate six plug-in I/O modules of any type and in any combination.
The ROC312 consists of these components and features, described in the following pages:
- FlashPAC module (standard).
- Three analog and two discrete/pulse inputs.
- One discrete output and one auxiliary output.
- Connections for operator interface.
- Status indicators and diagnostic inputs.
- Expansion slots for six I/O modules.
- Mounting provisions for an optional communications card and HART® Interface Card.
The FlashPAC module contains the operating system, ROC communications protocol, and applications firmware (see separate specification sheets). The applications firmware consists of built-in functions, such as AGA flow calculations, PID loop control, and FST control. The ROC312 also maintains an Audit trail per API Chapter 21.1. The FlashPAC module also provides additional battery-backed RAM for user programs. See Specification Sheet 2:MFP for details.