Communication interface
Modubus
Type 1
I/O unit A16B-1221-0091
Type 2
main board A16B-1221-0091
Type 3
control board A16B-1221-0091
Type 4
ac servo motor driver A16B-1221-0091
Type 5
AC motor driver A16B-1221-0091
Type 6
motor driver A16B-1221-0091
Type 7
dc motor driver A16B-1221-0091
Type 8
stepper motor driver A16B-1221-0091
condition
original and new A16B-1221-0091