Connecting the PC to a CPU
 
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Overview
You can download the Quantum CPU OS only by a direct connection between the PC and the CPU using the Modbus or Modbus Plus protocol.
NOTE: The CPU USB port does not manage OS or firmware download.
NOTE: Modbus Plus communication is faster than Modbus communication and requires less time to download a binary file. The Modbus Plus interface on the PC is provided by a TSXCUSBMBP Modbus Plus USB adapter.
Prerequisite
Stop the CPU before launching a communication with OS Loader whether it is to read a firmware version or update a firmware.
NOTE: The update procedure is a maintenance operation. It requires the CPU to be in STOP mode and disconnected from the systems and applications it affects. When a module is addressed through the CPU, the CPU must be in STOP mode and no functional communication traffic occur between the CPU and the module.
Modbus or Modbus Plus CPU Address
On Modbus or Modbus Plus, the default CPU address is the address 1.
NOTE: Verify that Modbus or Modbus Plus address 1 is not used by another device than the CPU on the network. If another device uses address 1 modify it and set it to an address not used on the network.
Connection Cable Reference
Connection and cable reference for Quantum CPU depending on the protocol:
CPU reference
Modbus
Modbus Plus
140 CPU 311 10
Connection:
  • PC: RS-232 COM port
  • CPU: 9-pin SUB-D
Cables:
  • 990NAA26320 (Length: 12.14 ft (3.7 m))
  • 990NAA26350 (Length: 49.21 ft (15 m))
Connection:
  • PC: TSXCUSBMBP adapter on the USB port
  • CPU: 9-pin SUB-D
Cables:
  • 990NAD21110 (Length: 7.87 ft (2.4 m))
  • 990NAD21130 (Length: 19.68 ft (6 m))
140 CPU 434 12•
140 CPU 534 14•
140 CPU 65150
Connection:
  • PC: 110XCA20300 adapter on the RS-232 COM port
  • CPU: RJ45 Modbus
Cables:
  • 110XCA28201 (Length: 3.28 ft (1 m))
  • 110XCA28202 (Length: 6.56 ft (2 m))
  • 110XCA28203 (Length: 19.68 ft (6 m))
Connection:
  • PC: TSXCUSBMBP adapter on the USB port
  • CPU: 9-pin SUB-D
Cables:
  • 990NAD21810 (Length: 7.87 ft (2.4 m))
  • 990NAD21830 (Length: 19.68 ft (6 m))
140 CPU 65160
140 CPU 65160S
140 CPU 65260
140 CPU 67060
140 CPU 67160
140 CPU 67160S
140 CPU 67260
140 CPU 67261
140 CPU 67861
Installing the Modbus Plus Communications Adapter
To install the Modbus Plus communication adapter (TSXCUSBMBP) driver, follow these steps:
Step
Action
1
Install the CD labeled Modbus Plus Driver Suite into your CD drive.
2
The installation should begin automatically.
If not, follow the procedure below to start the installation manually.
  • From the Start menu (Start button on Windows task bar), select Run.
  • Type D:\Setup.exe (if your CD drive is not D:, substitute the drive letter of your CD drive) and click OK.
3
Follow the on-screen instructions to complete the software installation.
4
The final step of the software installation displays a message window containing instructions to read carefully.
To install the Modbus Plus communication adapter (TSXCUSBMBP) hardware, follow these steps:
Step
Action
1
Connect the TSXCUSBMBP adapter to a USB port of your computer.
NOTE: Do not connect the Modbus Plus adapter cable between the TSXCUSBMBP and the CPU at this step to avoid duplicate Modbus Plus node addresses on the Modbus Plus network. Connect it only after setting the Modbus Plus address (step 4).
2
Follow the installation process until a message is displayed to indicate that the new hardware is ready to use.
3
Restart your computer.
4
Set the TSXCUSBMBP adapter Modbus Plus address.
NOTE: The CPU default Modbus Plus address is 1. This means that a different address needs to be assigned to the TSXCUSBMBP adapter.
To change the TSXCUSBMBP adapter Modbus Plus address:
  • Open Start → All Programs → Schneider Electric - MBX Driver Suite → Configuration → MBX Device Drivers.
  • Select the TSXCUSBMBP adapter and click Edit.
  • When prompted, select Launch Device Manager.
  • In the Device Manager, select the USB adapter under MBX Devices for Modicon Network → USB TSXCUSBMBP.
  • In the configuration window, select the Device Settings tab.
  • In the Node Address field, select an address value: 2 for example (TSXCUSBMBP adapter address needs to be different than the CPU address).
    The TSXCUSBMBP adapter Modbus Plus address is now set.
The TSXCUSBMBP adapter is ready to be used for updating a CPU module.
5
Connect the Modbus Plus adapter cable between the TSXCUSBMBP and the CPU.