Application Processor
- Processor: Motorola MPC860, 32-bit, 50 MHz
-
Flash PROM:
- 6 MB for SX, IOX, and control application storage
- CRC-protected
-
DRAM:
- 16 MB for SX control application execution and program/SOE data
- Byte parity
-
NVRAM:
- 8 KB for retentive variables
- CRC-protected
-
Clock Calendar:
-
Accuracy during power on:
- 1 sec/day typical
- 2.2 sec/day maximum
-
Accuracy during power off (battery-backed):
- 2.2 sec/day typical
- 9.2 sec/day maximum
-
Accuracy during power on:
-
Battery:
- ½ AA lithium, 15-year predicted life
-
TriBus:
- 25 Mbps, CRC-protected
- 32-bit + parity DMA
-
TriStation Port 1:
- 10BaseT Ethernet connector (RJ-45 shielded)
-
Modbus Port 1:
- RS-232/485 DTE (DB-9-pin shielded)
-
Debug Port:
- Access to diagnostic information (RJ-12 connector, shared with IOX debug port)
-
Communication Bus:
- RS-485, 2 Mbps HDLC
-
Alarm Contacts:
- Redundant, normally closed
Logic Power
- Nominal Input Voltage: 24 V DC
-
Operational Voltage Range:
- 24 V DC –15%/+20% (+5% AC ripple)
- (+19.2 / +30 V DC)
- Logic Power: 8 W maximum
- Absolute Maximum Input Voltage: 33 V DC
- Absolute Maximum Reverse Input Voltage: –0.6 V DC
- Input Power Interruption Time from Nominal: 1 ms minimum
- Repetition Rate: 1 sec maximum
- Reverse Current Isolation: 500 µA maximum (input to input)
-
In-rush Current per Input:
- 2.4 A maximum
- 1.2 A for 50 ms, typical
- Short Circuit Current Limit per Input: 2.4 A maximum
- Functional-Earth-to-Logic-Ground Isolation: 0 V, no isolation
- Protective-to-Functional-Earth Isolation: 500 V DC
Input/Output Processor
- IOX Processor: Motorola MPC860, 32-bit, 50 MHz
-
DRAM:
- 16 MB for IOX execution
- Byte parity
-
Shared Memory:
- 128 KB for communication with SX
- Byte parity
-
Diagnostic Bus:
- 2 Mbps HDLC for I/O module diagnostic communication between MP channels
-
Debug Port:
- Access to diagnostic information (RJ-12 connector, shared with SX debug port)
-
I/O Bus:
- RS-485, 2 Mbps HDLC
Logic Power (IOX)
- Nominal Input Voltage: 24 V DC
-
Operational Voltage Range:
- 24 V DC –15%/+20% (+5% AC ripple)
- (+19.2 / +30 V DC)
- Logic Power: 8 W maximum
- Absolute Maximum Input Voltage: 33 V DC
- Absolute Maximum Reverse Input Voltage: –0.6 V DC
- Input Power Interruption Time from Nominal: 1 ms minimum
- Repetition Rate: 1 sec maximum
- Reverse Current Isolation: 500 µA maximum (input to input)
-
In-rush Current per Input:
- 2.4 A maximum
- 1.2 A for 50 ms, typical
- Short Circuit Current Limit per Input: 2.4 A maximum
- Functional-Earth-to-Logic-Ground Isolation: 0 V, no isolation
- Protective-to-Functional-Earth Isolation: 500 V DC
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