Schneider 140CPU65260 – Unity processor Modicon Quantum



Unity processor Modicon Quantum – 3072 kB – 266 MHz

Modicon 140CPU65260: Beyond the User Manual / Firmware Information

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The Modicon Quantum 140CPU65260 is a Pentium Unity processor with 3072 kB of internal RAM and a clock frequency of 266 MHz. It has 2 local racks, and can have 6 optional modules: Ethernet, Modbus, Modbus Plus, Profibus DP, and Sy/Max. The module has 2 local signaling LEDs – 1 red for Ethernet collision and 1 green for Ethernet activity.

The 140CPU65260 firmware has a long history. The launch version was Unity Pro V2.0. Over time, 50+ changes have been made to a variety for firmware versions, correcting a number of bugs and issues. You should always update your module to the latest firmware revision. Firmware versions greater than V3.30 must be used with Copro version 5.8.

140CPU65260 firmware version V3.5 and all previous versions contain hardcoded backdoors that produce multiple vulnerabilities, allowing hackers (even remote ones) to view firmware, modify the module’s website, modify passwords, and download and run custom firmware.

Overall, the 140CPU65260 has a total of 4 communication ports. One Modbus (RS-232/RS-485), one Modbus Plus (RS-485), one USB, and one Ethernet. The CPU module requires a bus current of 2760 mA. This module also comes with a key switch. Its reference capacity for discrete (bits) is 62 kBytes and its reference capacity for registers (words) is also 64 kBytes. Its battery has a shelf life of 10 years and its service life is 12 mAh. The 140CPU65260 uses a 3V lithium battery.

The CPU module contains a number of built-in diagnostic capabilities. On powerup, it will check and diagnose any issues with RAM, RAM address, executive checksum, user logic, and the processor. While running, it will check all of these functions with the exception of the processor.

MRO Electric and Supply carries both new and refurbished Modicon 140CPU65260 Modules. For more information or to request a price quote, please email :[email protected] or call (86) 755 8660 6182.

Modicon Quantum 140CPU65260 Characteristics


range of product
Modicon Quantum automation platform
product or component type
Unity processor


clock frequency
266 MHz
number of slots
number of racks
2 – local rack(s)
number of distributed I/O station
63 station(s) – 1 rack(s) – 1 Modbus Plus network(s)
number of remote I/O station
31 – 2 S908 remote I/O rack(s)
31 – 2 ethernet Quantum remote I/O rack(s)
31 – 2 ethernet X80 remote I/O rack(s)
discrete I/O number
Unlimited (31 drops of 28 slots max) – ethernet remote I/O
31744 inputs, 31744 outputs – S908 remote I/O
8000 inputs, 8000 outputs – distributed – per network Modbus Plus
Unlimited (26 slots max) – local
analogue I/O number
Unlimited (26 slots max) – local
Unlimited (31 drops of 28 slots max) – ethernet remote I/O
500 inputs, 500 outputs – distributed – per network Modbus Plus
1984 inputs,1984 outputs – remote
application specific I/O
High-speed interrupt inputs
Serial link
Accurate time stamping
communication service
Ethernet router
number of optional modules
6 ( Ethernet, Modbus, Modbus Plus, Profibus DP, Sy/Max)
maximum number of connections
1 ( USB)
2 ( AS-Interface) – distributed
4 ( AS-Interface) – remote
6 ( Ethernet TCP/IP) – local
6 ( Modbus Plus) – local
6 ( Profibus DP) – local
1 ( Modbus) – RS232/485 Modbus/ASCII
integrated connection type
1 Modbus Plus with
1 Ethernet TCP/IP with
1 Modbus with
1 USB with
Process control
memory description
Expandable 7168 kB – program with PCMCIA card
Expandable 8 MB – file storage with PCMCIA card
Internal RAM 3072 kB
switch function
Key switch memory port on/off
application structure
1 cyclic/periodic master task –
1 periodic fast task –
128 I/O interrupt tasks –
128 interrupt tasks –
32 timer interrupt tasks –
4 auxiliary tasks –
number of instructions per ms
10.28 Kinst/ms if 100 % Boolean
10.07 Kinst/ms if 65 % Boolean and 35 % numerical
system overhead
1 ms – master task
0.2 ms – fast task
bus current requirement
2760 mA
local signalling
1 LED green for Ethernet activity (COM)
1 LED red for Ethernet collision
electrical connection
1 connector, connector type: RJ45 for connecting Ethernet network
1 connector, connector type: RJ45 for connecting Modbus bus
1 female connector, connector type: SUB-D 9 for connecting to the Modbus Plus network


product certifications
Misc (Marine)

Offer Sustainability

Sustainable offer status
Green Premium product
RoHS (date code: YYWW)
Compliant  – since  0901  –  Schneider Electric declaration of conformity Schneider Electric declaration of conformity
Reference not containing SVHC above the threshold
Product environmental profile
AvailableEnd of life manual
Product end of life instructions
AvailableEnd of life manual

Contractual warranty

Warranty period
18 months

Schneider 140CPU65260 Technical FAQs

1、What communication ports are available on the 140CPU65260 Unity processor?
Goals and Symptoms

2、What communication ports are available on the 140CPU65260 Unity processor?

Causes and Fixes

The Unity140CPU65260 processors has the following communication ports.
1 Modbus port (RJ-45) configurable for RS-232 / RS-485
1 Modbus Plus port (DB9) RS-485
1 USB port
1 Ethernet port

3、Will Quantum 140CPU65260 support X80 Ethernet Remote IO drops?

Quantum 140CPU65260 support for X80 Ethernet Remote IO drops

Quantum 140CPU65260 support for X80 Ethernet Remote IO drops

Product Line

Unity 10


The Quantum 140CPU65260 does support the X80 Ethernet RemoteIO drops. Both the BMECRA312x0 and the BMXCRA3123x0.
Unity 10 supports setting up Quantum 140CPU65260 with both the BMECRA3121x and the BMXCRA3123x0.

4、What causes Winsock error #10061 when attempting to use the Unity OS Loader?

Winsock error 10061, Quantum , OS Loader, Coprocessor, 140CPU65260

5、Does the 140CPU65260 support the 140CRP31200 along side of the 140CRP93X00 module?

Yes. The 140CPU65260 will need to have a minimum of V3.10 firmware installed to support both modules at the same time.

Dimensions Drawings

Racks for Modules Mounting
Dimensions of Modules and Racks