1: GENERAL INFORMATION1-2 « FC4A MICRO SMART USER ’S MANUAL »HMI Module (all CPU modules)An optional HMI module can be installed on any all-in-one type CPU module, and also on the HMI base module mountednext to any slim type CPU module. The HMI module makes it possible to manipulate the RAM data in the CPU modulewithout using the Online menu options in WindLDR.HMI module functions include:• Displaying timer/counter current values and changing timer/counter preset values• Displaying and changing data register values• Setting and resetting bit operand statuses, such as inputs, outputs, internal relays, and shift register bits• Displaying and clearing error data• Starting and stopping the PLC• Displaying and changing calendar/clock data (only when using the clock cartridge)• Confirming changed timer/counter preset valuesClock Cartridge (all CPU modules)An optional clock cartridge can be installed on the CPU module to store real time calendar/clock data for use withadvanced instructions to perform time-scheduled control.Memory Cartridge (all CPU modules)A user program can be stored on an optional memory cartridge using WindLDR. The memory cartridge can be installed onanother CPU module to replace user programs without the need for connecting to a computer. The original user program inthe CPU module is restored after removing the memory cartridge. The user program on the memory cartridge can also bedownloaded to the CPU module. The download option is selected using WindLDR.Analog I/O Modules (all CPU modules except the all-in-one 10- and 16-I/O types)Analog I/O modules are available in 3-I/O types, 2-input type, and 1-output type. The input channel can accept either volt-age (0 to 10V DC) and current (4 to 20 mA) signals or thermocouple (types K, J, and T) and resistance thermometer (Pt100) signals. The output channel generates voltage (0 to 10V DC) and current (4 to 20 mA) signals.AS-Interface Master Module (slim type 20-I/O relay output and 40-I/O types)Four upgraded slim type CPU modules (FC4A-D20RK1, FC4A-D20RS1, FC4A-D40K3, and FC4A-D40S3) with systemprogram ver. 201 and higher can use the AS-Interface master module, and have additional internal relays and data registersto communicate with slaves, such as actuators and sensors, through the AS-Interface bus. For details about AS-Interfacemodule and AS-Interface communication, see page 2-57 and chapter 28.Special FunctionsThe MicroSmart features various special functions packed in the small housing as described below. For details about thesefunctions, see the following chapters.Stop and Reset InputsAny input terminal on the CPU module can be designated as a stop or reset input to control the MicroSmart operation.RUN/STOP Selection at Startup when “Keep” Data is BrokenWhen data to be kept such as “keep” designated counter values are broken while the CPU is powered down, the user canselect whether the CPU starts to run or not to prevent undesirable operation at the next startup.“Keep” or “Clear” Designation of CPU DataInternal relays, shift register bits, counter current values, and data register values can be designated to be kept or clearedwhen the CPU is powered down. All or a specified range of these operands can be designated as keep or clear types.High-speed CounterThe MicroSmart has four built-in high-speed counters to make it possible to count up to 65,535 (FFFFh) high-speed pulseswhich cannot be counted by the normal user program processing. One high-speed counter (all-in-one type CPU modules)or two high-speed counters (slim type CPU modules) can be used as either two-phase or single-phase high-speed countersat a maximum count input frequency of 20 kHz. Three or two others are single-phase high-speed counters with a maxi-mum counting frequency of 5 kHz. The high-speed counters can be used for simple positioning control and simple motorcontrol.
