Siemens Simatic S7-1500 / ET 200MP - Page 18

Connecting
3.1 Pin assignment
Technology module TM FAST (6ES7554-1AA00-0AB0)
Equipment Manual, 04/2023, A5E52301130-AA
17
The following table shows sections of the circuit diagram of the technology module
depending on the use of the inputs and outputs:
Use of...
Section of the circuit diagram
RS485 or RS422 input signal
1
on CHm
2
(with twisted-pair cables)
TTL input signal
1
on CHm
TTL output signal
1
on CHm
Input signal on DIQm
Output signal on DIQm
1
You specify the signal to be used with the system logic parameter RS485_OR_TTL_DIRECTION.
2
Whether the respective internal terminating resistance is used for CH0, CH1 and CH4, is specified
by using the system logic parameter RS485_TERMINATION.
Note
External resistor
required at TTL output
It is recommended to use an additional external 220
Ω resistor to the grounding when using
a TTL output signal to improve the signal quality.
You can find additional information about the system logic parameters in the programming
manual Creating a TM FAST Application
(https://support.industry.siemens.com/cs/ww/en/view/109816088).
You can find more wiring examples in the application examples
(https://support.industry.siemens.com/cs/ww/en/ps/6ES7554-1AA00-0AB0/ae) in
Siemens Industry Online Support.