Siemens 353 User Manual
Siemens
Energy & Automation
USER'S MANUAL ADDENDUM
UMA353-1-6
Rev. 1
April 2001
Model 353 Process Automation Controller
Direct Entry1 Rear Connectors
INVOLVED MANUALS
User’s Manual, Model 353 Process Automation Controller, UM353-1, Rev. 8 and earlier.
DISCUSSION
Direct entry rear connectors will begin shipping in March 2001. Direct entry connectors are described in
this Addendum and all power, ground, station common, and signal terminals are identified.
Consult the nameplate on the case to determine whether direct entry connectors have been installed.
Model 353_2_ _ _ _ _ _ _ _ _ _ Side entry1 connectors are installed
Model 353_4_ _ _ _ _ _ _ _ _ _ Direct entry connectors with Ethernet connector are installed
Section 6 Installation, in UM353-1, describes the black side
entry connectors and the connections to be made to them. In
the following, the direct entry connectors will be described
and illustrated.
Direct entry connectors are shown in the adjacent figure.
There are four connectors with 52 screw-clamping terminal
connections. Each connector consists of a case mounted
portion and a plug-in portion. The plug-in portion of each
connector is securely fastened to the case mounted portion
by a screw at each end of the plug-in. The plug-in portion
can be completely wired and then plugged into the case
mounted portion.
Terminal functions and numbers have not changed. For
example, Station/Transmitter Common is terminal 6 on the
side entry and direct entry connectors.
A standard 8-wire Ethernet connector is provided near the
bottom of the assembly. A case ground screw is provided
near the top of the assembly, as in the side entry connectors.
The next page contains an illustration that states the
connections to the direct entry connectors.
AG00325a
1
Side entry and direct entry refer to the entry of wires into terminals installed on a rear connector assembly.
UMA353-1-6
2
twinaxial cable shields are to be grounded.
Terminal Function, ID, and Number
Network Communications A, NCA, 3
Network Communications B, NCB, 4
Transmitter Power 26 Vdc+, XMTR+, 5
Transmitter/Station Common, COM, 6
Transmitter Power, 26 Vdc+, XMTR+, 7
Digital Output 1+, DOUT1+, 8
Digital Outputs 1/2 Common, DOUTC, 9
Digital Output 2+, DOUT2+, 10
Digital Input 1+, DIN1+, 11
Digital Input 1-, DIN-, 12
Digital Input 2+, DIN2+, 13
Digital Input 2-, DIN2-, 14
Digital Input 3+, DIN3+, 15
Digital Input 3-, DIN3-, 16
Analog Output 1+, AOUT1+, 17
Analog Output 1/2 Common, AOUTC, 18
Analog Output 2+, AOUT2+, 19
Analog Input 1+, AIN1+, 20
Case/Safety Ground
Power Input
AC Hot or DC+, H
AC Neutral or DC-, N
Ethernet
Connector
Terminal Function, ID, and Number
Analog Input 1/2 Common, AINC, 21
Analog Input 2+, AIN2+, 22
Analog Input 3+, AIN3+, 23
Analog Input 3 Common, AINC, 24
I/O Bus A, IOA, 25
I/O Bus B, IOB, 26
Relay Output 1 Normally Closed, ROUT1nc, 27
Relay Output 1 Common, ROUT1c, 28
Relay Output 1 Normally Open, ROUT1no, 29
Relay Output 2 Normally Closed, ROUT2nc, 30
Relay Output 2 Common, ROUT2c, 31
Relay Output 2 Normally Open, ROUT2no, 32
Analog Output 3+, AOUT3+, 33
Analog Output 3 Common, AOUTC, 34
AG00326a
Notes:
1. Terminal numbers are shown on each connector. The plug-in portions of the connectors are packed with a case.
The connectors are keyed.
2. Case/Safety Ground - Connect to green screw at top center of rear terminal area.
3. NCA and NCB - Connect LIL Twinaxial Cable or twisted pair wiring. Refer to Section 6.5 for additional details.
4. IOA and IOB - LonWorks bus connections. Twisted pair wiring is typical.
5. Ground Bus - An external, user-supplied ground bus can ease connection of multiple grounds, particularly when
Terminal Number, Function, and ID
35, Digital Input Universal 1+, DINU1+
36, Digital Input Universal 1-, DINU137, Digital Input Universal 2+, DINU2+
38, Digital Input Universal 2-, DINU2-
39, Transmitter Power 26 Vdc+, XMTR+
40, Transmitter/Station Common, COM
41, Analog Input 4+, AIN4+
42, Analog Input Common, AINC
43, Digital Input 4+, DIN4+
44, Digital Input 4-, DIN445, Analog Input Universal 1 a, AINU1a
46, Analog Input Universal 1 b, AINU1b
47, Analog Input Universal 1 c, AINU1c
48, Analog Input Universal 1 d, AINU1d
49, Analog Input Universal 2 a, AINU2a
50, Analog Input Universal 2 b, AINU2b
51, Analog Input Universal 2 c, AINU2c
52, Analog Input Universal 2 d, AINU2d
Rear Terminal Layout and Terminal Assignments
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