140 CPU 678 61 Specifications
Original instructions
About us
Module Specifications
Component
Description
Communication ports
1 Modbus (RS-232/RS-485)
1 Modbus Plus (RS-485)
1 USB
1 Ethernet (used as a Hot Standby port)
Transmission Mode
Single mode
Bus current required
2.5 A
Max. number of communication modules supported at a time:
NOTE: This includes any module combination of: NOM, NOC, NOE, PTQ PDP MV1 and MMS
6 including:
  • up to 6 Quantum EIO distributed I/O modules 140 NOC 780 00
  • up to 2 Quantum EIO control head modules in the following configurations only:
    • two 140 NOC 781 00 modules
      – or –
    • two 140 NOC 781 00.2 modules
      – or –
    • one 140 NOC 781 00 module and one 140 NOC 781 00.2 module
    NOTE: You can enable IP forwarding in only one of the control head modules.
Key switch
Yes
Key pad
Yes
Processor
Feature
Description
Model
Pentium
Clock speed
266 MHz
Coprocessor
Yes, Built-in Ethernet
Watchdog timer
250 ms software adjustable
Memory
Internal memory
11264 kByte
Max HSBY Unlocated Data
1536 kByte
Max HSBY Located Data
128 kByte
NOTE: Not all of the Internal memory is available for the user program due to memory overhead, such as user, system, configuration, diagnostic data, etc. For more information see the chapter Memory tab in the Operating Modes Manual.
Reference Capacity
Discretes
65528 kByte max.
Registers
64976 kByte max.
S908 Remote I/O
Max. I/O words/drop
64 in / 64 out*
Max. number of remote drops
31
 
*
This information can be a mix of discrete or register I/O. For each word of configured I/O, one of the I/O words must be subtracted from the total available.
NOTE: The 140 CPU 678 61 is able to handle the mix of S908 remote I/O and Ethernet remote I/O architectures.
Ethernet Remote I/O
Max. I/O words/drop
400 in + 400 out
Max. number of remote drops
31 including:
  • up to 31 Quantum drops (140 CRA 312 00)
  • up to 31 X80 drops (BMX CRA 312 •0)
Max. number of I/O per Quantum drop
No limit
Max. number of I/O per X80 drop (BMX CRA 312 00)
up to 16 analog I/O
up to 128 discrete I/O
Max. number of I/O per X80 drop (BMX CRA 312 10)
up to 184 analog I/O
up to 1024 discrete I/O
NOTE: The 140 CPU 678 61 is able to handle the mix of S908 remote I/O and Ethernet remote I/O architectures.
NOTE: Adding a complete Ethernet remote I/O drop online while PLC is in RUN is possible with the 140 CPU 678 61.
Change Configuration On The Fly (CCOTF)
Supported
Battery and Clock
Battery type
3 V lithium
Service life
1.2 Ah
Shelf life
10 years with 0.5% loss of capacity/year
Battery load current @ power-off
typical: 14 μA @ 25 °C (ambient temperature)
maximum: 420 μA @ 60 °C
TOD clock
+/-8.0 s/day @ 0...60 °C
Diagnostic
Power-up
RAM address
Executive Checksum
User Logic Check
Processor
Run Time
RAM address
Executive Checksum
User Logic Check