Siemens Simatic S7 Series System Manual

Communication
8.6 RS485
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
405
8.6.4.7
Biasing and terminating the CM01 signal board
You can use the CM01 signal board to easily connect multiple devices to a network.
The signal board passes all signals (including the power pins) from the S7-200 SMART CPU
through to the programming port, which is especially useful for connecting devices that draw
power from the S7-200 SMART CPU (such as a TD 400C).
①
Terminal name
②
Terminal block
③
Cable shield
8.6.4.8
Using HMI devices on your RS485 network
Introduction
The S7-200 SMART CPU supports many types of RS485 HMI devices from Siemens and
also from other manufacturers. While some of these HMI devices (such as the TD400C) do
not allow you to select the communication protocol used by the device, other devices (such
as the KP and TP product lines) allow you to select the communication protocol for that
device.

Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.