Ethernet Basic, Standard and Analog PLC Unit Specifications
Ethernet Basic PLC Ethernet Standard PLC Ethernet Analog PLC
Control Method
Stored Program/Cyclic Execution Method
I/O Numbering System
Fixed in Decimal Fixed in Decimal Fixed in Decimal
Ladder Memory (steps)
8000 8000 8000
Total Data Memory (words)
8000 8000 8000
Contact Execution (Boolean)
< 0.2 μs < 0.2 μs < 0.2 μs
Typical Scan (1K Boolean)
< 1ms < 1ms < 1ms
RLL Ladder Style Programming
Yes Yes Yes
Run Time Edits
Yes Yes Yes
Scan
Variable / fixed Variable / fixed Variable / fixed
CLICK Programming Software
for Windows
Yes Yes Yes
Built-in Communication Ports
Yes (one Ethernet port and
one RS-232 port)
Yes (one Ethernet port,
one RS-232 port and
one RS-485 port)
Yes (one Ethernet port,
one RS-232 port and
one RS-485 port)
Protocol
Modbus RTU (master/slave) and ASCII (in/out),
Modbus TCP (client server), EtherNet/IP Implicit and Explicit (adapter server)
FLASH Memory
Standard on PLC Standard on PLC Standard on PLC
Built-in Discrete I/O points
8 inputs, 6 outputs 8 inputs, 6 outputs 4 inputs, 4 outputs
Built-in Analog I/O Channels
No No
2 inputs, 2 outputs or
4 inputs, 2 outputs
Number of High-Speed Input Points
4 8 4
Number of High-Speed Counters
4 6 4
PID Control Loops
8 8 8
Number of Instructions Available
21 21 21
Control Relays
2000 2000 2000
System Control Relays
1000 1000 1000
Timers
500 500 500
Counters
250 250 250
Interrupts
Yes (external: 8 / timed: 4) Yes (external: 8 / timed: 4) Yes (external: 4 / timed: 4)
Subroutines
Yes Yes Yes
For/Next Loops
Yes Yes Yes
Math (Integer and Hex)
Yes Yes Yes
Drum Sequencer Instruction
Yes Yes Yes
Internal Diagnostics
Yes Yes Yes
Password Security
Yes Yes Yes
System Error Log
Yes Yes Yes
User Error Log
No No No
Memory Backup
Super Capacitor + Battery
Battery Backup
Yes (battery part # D2-BAT-1)
Calendar/Clock
Yes Yes Yes
I/O Terminal Block Replacement
AutomationDirect p/n C0-16TB
Communication Port & Terminal
Block Replacement
N/A
AutomationDirect p/n
C0-3TB
AutomationDirect p/n C0-3TB
24VDC Power Terminal Block
Replacement
AutomationDirect p/n C0-4TB
PLC Unit Specifications, cont’d
CLICK PLC Hardware User Manual, 6th Edition, Rev. G – C0-USER-M
2–28
Chapter 2: Specifications