Siemens SIMATIC S7-200 - EM 277 Profibus-DP Module Compatibility with S7-200 Plcs; Address Switches and Leds; Front View of the EM 277 Profibus-DP Module

S7-200 Specifications
A-51
S7-200 Programmable Controller System Manual
A5E00066097-02
Compatibility
The EM 277 PROFIBUS-DP slave module is an intelligent expansion module
designed to work with the S7-200 PLCs shown in Table A-17.
Table A-17 EM 277 PROFIBUS-DP Module Compatibility with S7-200 PLCs
CPU
Description Order Number
CPU 222 Rel 1 10 or greater
CPU 222 DC/DC/DC 6ES7 212-1AB21-0XB0
CPU 222 Rel. 1.10 or greater
CPU 222 AC/DC/Relay 6ES7 212-1BB21-0XB0
CPU 224 Rel 1 10 or greater
CPU 224 DC/DC/DC 6ES7 214-1AD21-0XB0
CPU 224 Rel. 1.10 or greater
CPU 224 AC/DC/Relay 6ES7 214-1BD21-0XB0
CPU 226 Rel 1 00 or greater
CPU 226 DC/DC/DC 6ES7 216-2AD21-0XB0
CPU
226
R
e
l
.
1
.
00
or greater
CPU 226 AC/DC/Relay 6ES7 216-2BD21-0XB0
Address Switches and LEDs
The address switches and status LEDs are located on the front of the module as
shown in Figure A-26. The EM 277 status LEDs are shown in Table A-20.
ML+
x10
x1
CPU FAULT
POWER
DP ERROR
DX MODE
Address Switches:
x10=sets the most significant digit of the address
x1= sets the least significant digit of the address
=Earth ground
=24 VDC return
=24 VDC
M
L+
Input Power:
DP Slave Port Connector
Figure A-26 Front View of the EM 277 PROFIBUS-DP Module