I/O General I/O (Firmware FBxx)

The “I/O” dialogue allows you to program the following operations with the digital inputs and outputs:

•	Read and save the status of a digital input into a variable

•	Read and save the status of multiple digital inputs into a variable

•	Set multiple digital outputs according with an immediate value or the value of 16-bit variable

The digital inputs and outputs are numbered: 0 to 15. Each intelligent drive/motor has a specific number of inputs and outputs, therefore only a part of the 16 inputs or outputs is used. The I/O numbering is common for all the products; hence each product has its own list of available I/Os. This is an ordered list. For example, a product with 4 inputs and 4 outputs can use the inputs: IN0, IN1, IN2 and IN3 and the outputs OUT0, OUT1, OUT2 and OUT3.

1.	Select Single I/O, Read input line, choose the desired input from the list of available inputs and provide the name of an integer variable where to save the input status

2.	Check Set as input if the input selected may also be used as an output. Do this operation only once, first time when you use the input. Omit this check if the drive/motor has the inputs separated from the outputs (i.e. all have different line numbers)

When this TML command is executed, the variable where the input line status is saved, becomes:

Remark: Check the drive/motor user manual to find if the input line you are reading is directly connected or is inverted inside the drive/motor. If an input line is inverted, the variable where the input line is saved is inverted too: zero if the input is high (at connectors’ level), non-zero if the input is low (at connectors’ level).

1.	Select Single I/O, choose Set output line, select the desired output from the list of available outputs and choose the output level: low or high

2.	Check Set as output if the output selected may also be used as an input. Do this operation only once, first time when you use the output. Omit this check if the drive/motor has the inputs separated from the outputs.

Remark: The TML code generated takes into account the possibility to have outputs inverted inside the drive/motor. This information, provided by the setup data, is used to inverse the output command logic: getting the output high (at connectors’ level) means setting the output low and to getting the output low (at connectors’ level) means setting the output high

Check Read inputs in variable to read simultaneously more inputs and specify the name of an integer variable where to save their status. The bits corresponding to these inputs are set as follows: 0 if the input is low and 1 if the input is high. The other bits of the variable are set to 0.

Remark: If one of these inputs is inverted inside the drive/motor, the corresponding bit from the variable is inverted too. Hence, these bits always show the inputs status at connectors level (0 if input is low and 1 if input is high) even when the inputs are inverted.

Check Set outputs to set simultaneously more outputs with the value of 16-bit mask or variable. Select the outputs you want to command and specify how they are set:

•	with the mask generated after setting as High or Low each of the selected outputs

•	with the value of the specified 16-bit variable.

The outputs are set as follows: low if the corresponding bit in the mask or variable is 0 and high if the corresponding bit in the mask or variable is 1. The other bits of the mask or variable are not used.

Remark: If one of these outputs is inverted inside the drive/motor, its command is inverted too. Hence, the outputs are always set at connectors level according with the bits values (low if bit is 0 and high if bit is 1) even when the outputs are inverted.

OK: Close this dialogue and save the motion sequence in your motion sequence list.

Cancel: Close this dialogue without saving anything in your motion sequence list.