aftaev писал(а):Figaro писал(а):7i77 Обычная или 7i77D
На сколько помню обычная от D отличается тем что разъемы под отвертку или под пайку. Фото нужно было делать и со стороны компонентов

Вот из руководства (сложности перевода )
FIELD OUTPUT CHARACTERISTICS
VIN AND FIELD POWER SUPPLY
The 7I77 field I/O runs from field power supplies of 5 to 32 VDC. Field power
supplies the power to the 7I77
(No D) outputs and determines the 7I77 input thresholds.
VIN power runs the field I/O processor and normally is connected to field power. VIN must
be greater than 8V for proper operation. This means VIN must come from a separate
source if 5V field voltage is used. Power consumption is approximately 600 mW or 25 mA
at 24V. VIN power must be present for the 7I77 field I/O to be detected and operate. Field
voltages that are too high or too low will cause faults.
Field power must have a ramp up rate of less than 10V/Millisecond. This
means that you cannot switch the field power connection with a switch or relay.
FIELD OUTPUT CHARACTERISTICS
The 7I77
(no D) field outputs are high side or sourcing type drivers, that is they
source positive voltage to a ground referred load. For example with a standard 24V field
power, +24V connects to the 7I77s field power input (on TB1) and the outputs on TB5 and
TB6 now source +24V power to loads. All 7I77 loads will have one side returned to ground
or the negative lead of the 24V supply. The 7I77s outputs can drive loads of up to 350 mA