Instruction manual
Bulletin 900-CONV
Interface Controller
9-213
www.ab.com/catalogs Preferred availability cat. nos. are b
bold
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Publication A117-CA001A-EN-P
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Overview/Product Selection
Bulletin 900-CONV — Interface Converter
Table of Contents
Product Selection...... this page
Specifications.............. this page
Approximate
Dimensions................... 9-214
External
Connections/Front
Display Operations.... 9-215
Standards Compliance
UL 508
CSA C22.2, No. 14
CE Marked
Certifications
cURus Listed (File No. E
113724, Guide No. NRAQ2,
NRAQ8)
Product Selection
Standard Models
Bulletin No. Size Power Supply Voltage Cat. No.
900-CONV
30 mm (W) x 80 mm (H) x 78 mm (D)
100…240V AC
900-CONVZ25
24V AC/DC
900-CONVU25
Converts personal computer RS-232/USB communications to RS-485. Use for interface with a single Bulletin 900-TCx, or multiple (up to 31) contr
ollers with
RS-485 communications.
Specifications
Technical/Control Ratings
Communications
Method
Master Device (PC) RS-232C
Slave Device (900-TCx Controller) RS-485 (2-wire, half duplex) (selectable)
Synchronization Method Start-stop synchronization
Master Device (PC)
RS-232C
Interface
Max. transmission
distance
15 m
Max. number of
connectable units
1 unit
USB
Interface
Max. transmission
distance
5 m or when the total time (hub delay time plus the cable delay time) is less than or equal to 70 ns
Max. number of
connectable slave units
1 unit
USB Standard V1.1
Slave Device (900-TCx) RS-485
Interface
Max. transmission
distance
500 m
Max. number of
connectable
slave units
31 units (for multi-drop connection)
Baud Rate 1200/2400/4800/9600/19 200/38 400 bps (Default setting: 9600)
Data Bit Length 7 or 8 bits (Default setting: 7)
Stop Bit Length 1 or 2 bits (Default setting: 2)
Communications Parity None, even, odd (Default setting: Even)
Echoback Selection Echoback: With/without (Default setting: Without)
Selection Switch Response Delay Approx. 30 ms
General/Environmental Ratings
Supply Voltage 100…240V AC, 50/60 Hz 24 V AC, 50/60 Hz or 24 V DC
Operating Voltage Range 85…110% of rated supply voltage
Power Consumption 5 VA max. 24 V AC: 3 VA max., 24 V DC: 3 W max.
Ambient Temperature
RS-232C –10…+55 °C (with no icing)
USB 0...+55 °C (with no icing)
Ambient Humidity 25…85% (with no condensation)
Storage Temperature –20…+65 °C
Enables RS-232 or USB 1 (ser. B or later converter) to RS-485
Communications between a Personal Computer (PC) using
900Builder™ Lite (900-TC8/ 900-TC16) or 900Builder™ (900-TC32)
Software and up to 31 Bulletin 900-TCx Controllers — ideal for
industrial applications
All signal lines have 1500V AC insulation at the RS-232C (USB: 500
V AC) and RS-485 sides using opto-couples; power supply lines
have 1500V AC insulation using a transformer
Diagnostic LEDs indicate power available and active data
transmission
On-Board wiring and data configuration diagrams simplify startup
DIN Rail or panel mountable
1 Use of the USB mode requires the download of free software onto
your PC. This software is FREE can be found online at:
http://ab.rockwellautomation.com/Sensors-Switches/Temperature-
Sensors/900Builder-Lite-Temperature-Controller-Software