Specification Sheet Page 3
2: ROC364
I/O modules can be added as needed to satisfy a
wide variety of field I/O requirements. The types of
modules (see respective specification sheets) that can
be used are:
♦ Analog input (loop, differential, or source)
♦ Analog output
♦ Discrete input (source or isolated)
♦ Discrete output (source or isolated)
♦ Pulse input (normal, slow, or low-level)
♦ Relay output
♦ RTD input
♦ HART
®
interface
Communication cards provide the means for com-
municating with a host computer or other device. One
or two cards of the following types in any combination
can be accommodated (see Specification Sheets
2:COM1, 2:COM2, and 2.5:RMI for more information):
♦ EIA-232 (RS-232) for point-to-point
asynchronous serial communications.
♦ EIA-422/EIA-485 (RS-422/RS-485) for multiple-
point asynchronous serial communications.
♦ Dual Communications (RMI) for sensor to ROC
communications.
♦ Radio modem for communications to a radio.
♦ Leased line modem for communications over
customer-owned or leased lines.
♦ Dial-up modem for communications over a
telephone network.
RAM expansion modules (for ROCPAC units only)
are available in two sizes: 128 and 256 kilobytes. Up
to three RAM modules can be accommodated. The
amount of expansion RAM needed depends primarily
on the number of database points that must be
archived and the user programs to be loaded into it.
Additional information about RAM modules is
contained in Specification Sheet 2:MEM.
Accessories
A number of accessory items are available for the
ROC364 that provide environmental housing, power,
communications, local monitoring, and I/O lightning
protection. These items are described in other
specification sheets. See your local sales
representative for more information.
Specifications
PROCESSOR MEMORY
NEC V25+ running at 8 MHz.
On-Board: 128K battery-backed SRAM for data.
32K EEPROM for configuration.
FlashPAC: Plug-in module with 512K (352K used)
Flash read-only memory (ROM) and 512K of
battery-backed static RAM (SRAM).
ROCPAC: One plug-in module with 128K EPROM
and 128K battery-backed SRAM.
RAM Expansion Option (for ROCPAC only):
Three slots provided for 128K or 256K battery-
backed SRAM plug-in modules.
Memory Reset: Optional LDP permits a cold start
initialization when used during power-up.
OPERATOR INTERFACE PORT
EIA-232D (RS-232D) serial format for use with
portable operator interface. Baud is selectable from
300 to 9600. Asynchronous format, 7 or 8-bit
(software selectable). Parity can be odd, even, or
none (software selectable). 9-pin, female D-shell
connector provided.
TIME FUNCTIONS
Clock Type: 32 KHz crystal oscillator with regulated
supply, battery-backed. Year/Month/Day and
Hour/Minute/Second.
Clock Accuracy: 0.01%.
Watchdog Timer: Hardware monitor expires after
1.2 seconds and resets the processor. Processor
restart is automatic.
DIAGNOSTICS
These values are monitored: real-time clock/system
clock compare, AI module mid-scale voltage, DI
module default status, AO module D/A voltage, DO
module latch value, I/O transmitter voltage, power
input voltage, auxiliary output 1 & 2 voltage
(ROCPAC only), MCU board temperature.
POWER REQUIREMENTS
11 to 16 Vdc (12.5V to start up) or 22 to 30 Vdc (25V
to start up), jumper selectable. 1 watt typical,
excluding I/O power.
(Specifications continued on Page 4)
(71 Seiten)
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