Emerson ROC827 instruction manual Diagnostic Monitoring, Options, System Analog Inputs

ROC827 Instruction Manual

1.2.4 Diagnostic Monitoring

The ROC827 has diagnostic inputs incorporated into the circuitry for monitoring system integrity. Use ROCLINK 800 software to access the System Analog Inputs. Refer to Table 1-1.

Table 1-1. System Analog Inputs

System AI	Function	Normal Range
Point Number
1	Battery Input Voltage	11.25 to 16 Volts dc
2	Charge in Voltage	0 to 18 Volts dc
3	Module Voltage	11.00 to 14.50 Volts dc
4	Not Used	Not Used
5	On Board Temperature	–40 to 85°C (–40 to
		185°F)

1.2.5 Options

The ROC827 allows you to choose from a wide variety of options to suit many applications.

Optional communication modules include EIA-232 (RS-232) serial communications, EIA-422/485 (RS-422/485) serial communications, Multi-Variable Sensor (MVS), and dial-up modem communications (refer to Chapter 5, Communications).

The ROC827 can handle up to two MVS interface modules. Each module can provide power and communications for up to six MVS sensors, for a total of up to 12 MVS sensors per ROC827 (refer to Chapter 5, Communications).

Optional I/O modules include Analog Inputs (AI), Analog Outputs (AO), Discrete Inputs (DI), Discrete Outputs (DO), Discrete Output Relays (DOR), Pulse Inputs (PI), Resistance Temperature Detector (RTD) Inputs, Thermocouple (T/C) Inputs, and Highway Addressable Remote Transducers (HART) (refer to Chapter 4, Input/Output Modules).

The optional application license keys provide extended functionality, such as the use of the DS800 Development Suite Software (the IEC 61131-3 compliant programming environment) and various user programs, and enables embedded meter runs. For example, you need to install a license key with the proper license in the ROC827 to perform AGA calculations. Refer to Section 1.6, “DS800 Development Suite Software.”

The Local Operator Interface (LOI local port) communications terminal requires the installation of an LOI cable between the ROC827 and your PC. The LOI port uses an RJ-45 connector with a standard EIA-232 (RS-232D) pin out.

Issued Mar-06 General Information 1-7