On T100MD888+ the peak output current it can sink is 10A. When OFF, the output has a weak pull up to the PLC's positive terminal but when it turns on it goes to 0V and can sink peak 10A but continuous 2A only.
On T100MD2424+ the peak output current it can SOURCE is 10A and continous current is 2A. The output = 24V when turns ON and floating when it is OFF.
On T100MD1616+ the output sinks 1A max and 250mA continuous.