PM 904F   CPU Module

4 Ethernet interfaces, 800 MHz CPU clock, 48 MB Controller Memory, 16 MB battery buffered SRAM, 32 MB DRAM. 4 slots for assembling Communication Interface Modules. Without operating system. The operating system has to be loaded during software installation. Needs external 24 VDC power supply. Software version 2019 or higher is mandatory. Display Unit TD 951F and Battery TA 951F are not included.

PM 902F CPU Module

4 Ethernet interfaces, 800 MHz CPU clock, 24 MB Controller Memory, 8 MB battery buffered SRAM, 16 MB DRAM. 2 slots for assembling Communication Interface Modules. Without operating system. The operating system has to be loaded during software installation. Needs external 24 VDC power supply. Display Unit TD 951F and Battery TA 951F are not included.

The Central Processing Unit (CPU) module is equipped with a high-performance processor for multitasking and executing fast loop cycle times. It offers expanded flexibility via a pluggable SD card, redundancy options for high availability and powers for around 1500 I/Os. It comes with four onboard 100 Mbit/s Ethernet network connection used for communication between controllers, operator stations and engineering tool. Two serial line interfaces can be used for Modbus communication and/or Telecontrol. A third serial interface is reserved for diagnosis purpose and radio clock connection.

The PM 904F has 48 MB of memory of which   16 MB are battery backed up. For demanding applications, eight cyclic and priority driven tasks with adjustable cycle time can be configured, as well as a cyclic PLC type task which runs as fast as possible. The additional available display unit TD 951F shows status and diagnostic information   directly at the module.

Operating modes can be modified by switches on the front panel. The controller can be blocked for downloads of application and firmware to enhance security. The status, if the controller is locked or unlocked, is shown on the display.

S700 I/O modules can be directly plugged to the I/O bus interface on the right side of the CPU module. A maximum of 10 direct I/O modules can be connected to one controller.

The CPU and the local S700 I/O modules commu nicate very fast. I/O scan times of 2 ms are possi ble. Short circuit and line break detection can be   realized for each channel. Coupler bus slots on the left side can be assigned with fieldbus inter face modules.

The PM 904F can be equipped with a maximum   of four communication interface.

The PM 902F CPU module provides a high perfor mance processor for multitasking and executing fast loop cycle times. PM 902F also has 24 MB of memory of which 8 MB is battery backed up.

The PM 902F can be equipped with a maximum   of two communication interfaces. PM 902F comes with four on-board 100 Mbit/s Ethernet network connections and two serial interfaces. A third serial interface is reserved for diagnosis purpose and radio clock connection.

A lite version PM 901F is also available, see   section “3.3.4 Central processing unit PM 901F, lite” on page 23.

Central processing unit PM 901F, lite

PM 901F CPU Module

3 Ethernet interfaces, 400 MHz CPU clock, 11 MB Controller Memory, 3 MB battery buffered SRAM, 8 MB DRAM. Processing of around 400 IO's. 2 slots for assembling Communication Interface Module. Without operating system. The operating system has to be loaded during software installation. Needs external 24 VDC power supply. Software version 2016 or higher is mandatory. Display Unit TD 951F and Battery TA 951F are not included.

A CPU module is the central part of the AC 900F controller. It provides a high performance pro cessor for multitasking and executing fast loop cycle times. 

 It comes with three on-board 100 Mbit/s Ethernet network connections and two serial interfaces.   A third serial interface is reserved for diagnosis purpose and radio clock connection.

Coupler bus slots and an I/O bus interface enables for adding further modules left and right   to the CPU modules.

An optional front panel display shows status and diagnostic information directly at the module. Operating modes can be modified by switches on the front panel.

PROFIBUS Communication Interfaces

Two types of PROFIBUS Master interface modules can be used with AC 900F: CI 930F and CI 773F. For AC 900F, these PROFIBUS interface modules enable communication over the PROFIBUS DP fieldbus. The interfaces can be mounted to the slots on the left side of the CPU module. (see "Figure 1: CPU Module PM 904F" on page 21 and "Figure 2: CPU Module PM 902F" on page 22 and "Figure 3: CPU Module PM 901F" on page 23) The internal coupler bus makes the connection to Name the CPU. PROFIBUS modules are configured in the Freelance Engineering hardware structure. Information on configuring the PROFIBUS   module, see Engineering Manual System Configuration, Hardware Structure. The parameter data directly influence the func tionality of the module. Further information   on configuration and parameterization of the module, refer to the Engineering Manual AC 900F.

CI 930F

CI 930F is module is a PROFIBUS DP master, but with additional features compared to CI 773F.   CI 930F supports built-in line redundancy. Each PROFIBUS module allows the connection of a PROFIBUS line of maximum of 126 slaves. Each of these slaves can be modular.

LED Status Displays

The PROFIBUS module CI 930F runs a self test during the power ON process. During the initial ization procedure if the module is newly config ured or if the operating mode is changed then all the LEDs may light up for a short period of time before reaching a definite condition.

CI 773F

Communication Interface, PROFIBUS DP Master DP-V0/V1, 12 MBit/s D-Sub terminal, 9-pole Software version 2013 SP1 or higher is mandatory Requires one coupler bus slot on the CPU module on PM 904F, PM 902F,   PM 901F or Terminal Base TB 711F.

CI 773F module is a PROFIBUS DP master and   very similar to CI 930F, the only thing missing   is the built-in support for line redundancy. CI 773F supports controller redundancy.

LED Status Displays

After having switched on, the CI 773F module   performs a self-test during power-up. During the initialization procedure, with newly configured modules or after a change of the operating mode, then all the LEDs may light up briefly before reaching the defined status.

CAN Communication Interface

An AC 900F controller with CI 910F CAN Bus   module allows for connecting traditional Freelance Rack I/O. The CI 910F CAN Bus interface comprises three CAN Bus lines, CAN 1 to CAN 3. The lines are electrically isolated from the system and designed for redundant operation with a sec ond AC 900F controller. The internal coupler bus connects the CI 910F   to the CPU module. This is for both data   transmission and power supply. A dual port   RAM is used for data exchange. CAN modules are configured in the Freelance   Engineering hardware structure. Information on configuring the CAN module, see Engineering Manual System Configuration, Hardware Structure. Further information on configuration and parameterization of the module, refer to the Engineering Manual AC 900F.

CI 910F

Three CAN Bus channels. ABB CAN Bus protocol. D-Sub terminals (9-pole). Software version 2016 or higher is mandatory. Requires one coupler bus slot on the CPU module.

LED Status Displays

After having been switched on, the CI 910F CAN Bus module performs a self-test during power- up. During initialization, with newly configured   modules or after a change of the operating mode, all LEDs may light up briefly before reaching the defined status.

CAN Bus connector

The CAN Bus connector of CI 910F features the following pin assignment:

Connection of Freelance Rack I/O

When connecting the AC 900F controller to a Freelance rack, you will have to remove the DCP 02/10 CPU modules.

AC 900F controller at the beginning   (end) of the CAN Bus

The TP 910F CAN Bus termination plug is used for terminating the three CAN buses directly at the controller at the beginning (end) of the bus lines. The open end of the TK 811F CAN cable is con nected to the screw terminals of the TP 910F plug.

Redundant AC 900F controller at the beginning (end) of the CAN Bus

The terminating resistors integrated into the TP 910F termination plug ensure that the termina tion and, thus, the function of the three CAN Bus lines is preserved even if a CAN bus module or controller is replaced. TB 870F is used for con necting the CAN bus between controllers and   to the I/O rack. The TK 831F cable contains feed and return lines. When replacing a CI 910F module or controller, only disconnect the 9-pole connector. Disconnecting the 25-pole connector will inter rupt the CAN Bus.

Ethernet Communication Interface

The CI 940F module is a high-speed Ethernet fieldbus module that is suitable for fast data exchange in process control technology with decentralized peripherals. The CI 940F has two Ethernet lines. The lines are galvanically separated from the system. The CI 940F is designed for redundancy operation with redundant AC 900F. In conjunction with Freelance Engineering, FOUNDATION Fieldbus HSE can be projected and configured on ETH1. With Freelance 2024 it can be used also for PROFINET. The module-internal coupler bus connects the CI 940F with the CPU module. The data exchange takes place via a dual port RAM. The module can be used in any of the fieldbus slots C1 ... C4.

LED status displays

Ethernet connection The following pin assignment applies to the Ethernet connection on the CI 940F: Two single-color LEDs are integrated on the RJ45 connector, which show the current communication status. The unlabeled LEDs are clearly identifiable by their color. The lower, green LED indicates the status of the connection, while the upper, yellow LED indicates the transmission speed.

Cabling FF/HSE cabling is always a point-to-point connec tion. This means that you must provide appropri ate network switches and network hubs to set up a network with more than two participants. Due to the Auto MDI-X capability of the CI 940F,   it is not necessary to use a crossover cable for   a direct connection.

Accessories

TD 951F Display Unit This is an optional accessory. It provides a dot matrix LCD with 128 x 64 pixel resolution, keypad with six predefined and four function keys. The display unit allows the following functions: 

 • Network settings 

 • Backup/Restore application 

 • Status display • Display of process variables 

 • Module exchange 

 • Firmware update 

 • Lock/unlock the controller against firmware and application downloads

TA 951F Battery for RAM buffering TA 951F contains a 2/3A size Lithium battery   with cable connection. The battery is sealed within a plastic pack. It is possible to exchange this battery without stopping the CPU module.   In the event of power failure, the TA 951F Lithium battery supplies power to store the SRAM con tents (e.g. process and configuration data) and   to back-up the real time clock. 

The CPU module is supplied without a Lithium battery. Although the CPU module can work without a   battery, its use is still recommended in order   to avoid losing process data. The CPU module   monitors the discharge status of the battery.   An pre-warning indication is displayed before (at least two weeks in advance) the battery status becomes critical. The battery should be replaced in fixed intervals or as soon as possible after this error indication is displayed. The TA 951F Lithium battery is the only battery that can be used with CPU module PM 901F, PM 902F or PM 904F. It is a primary cell and cannot be recharged. Technical data: 

 • Lithium cylindrical cell 

 • 3 V, 1200 mAh 

 • Primary cell, non rechargeable 

 • Protection against reverse polarity is by   mechanical coding of the plug

TA 724F Empty housing for covering unused coupler bus slots. 3BDH000367R0001
TA 924F Empty housing for covering unused coupler bus slots. For use with the AC 900F CPU module. 3BDH001031R0001

TA525 Set(10) of white Plastic Markers. For labeling the modules, waterproof felt pins can be used. 1SAP180700R0001

TP 910F CAN Bus Termination Plug Integrated termination resistors. Screw type clamps. Connection of the Freelance rack based I/O. 3BDH001033R0001

TB 870F Terminal Block, for serial interface. 3BDM000160R1

TK 811F CAN Cable, open end, 3 m 3 x 2 x 0.25 mm². Connection FI 8x0F to Terminal Block TB 870F. 3BDM000103R

TK 831F CAN Cable (3 channel), connectors, 0.5 m 3 x 2 x 0.25 mm². Connection FI 810F to Terminal Block TB 870F (3 channel). 3BDM000100R1
TK 821F Serial Cable (2 channel), integral connectors, 0.5 m Connection FI 820F to Terminal Block TB 870F. 3BDM000150R1

TK 891F Diagnostics Cable, 5 m 3BDM000201R1

TK 890F Diagnostics Cable, 10 m 3BDM000202R1