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ROC827 Instruction Manual
Issued Mar-06 General Information 1-7
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
Point Number
Function Normal Range
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 85C (–40 to
185F)
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.