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Bulletin 900-CONV
Interface Converter
23
Product Overview/Specifications
Bulletin 900 — Interface Converter
y Enables RS-232 or USB ✶ (ser. B or later converter) to RS-485
Communications between a Personal Computer (PC) using
900BuilderLite™ (900-TC8/ 900-TC16) or 900Builder™ (900-TC32)
Software and up to 31 Bulletin 900-TCx Controllers — Ideal for
Industrial Applications
y 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
y Diagnostic LEDs Indicate Power Available and Active Data
Transmission
y On-Board Wiring and Data Configuration Diagrams Simplify Startup
y DIN Rail or Panel Mountable
y cURus, CE
✶ To use the USB mode requires the download of free software onto your PC. This software can be found at the
Bulletin 900 Temperature Controller website: http://www
.ab.com/industrialcontrols/products/relays_timers_and_temp_controllers/single_loop_temp-
heater_controllers/900tc.html
Once at this site, go to "Get Software" (upper right of screen) and click on "Virtual Communications Port USB Driver" and follow the instructions.
Table of Contents
Approximate
Dimensions................... 24
External
Connections................. 25
Bulletin 900-CONV
Front Display /
Operations.................... 26
Product Selection
Standard Models
Bulletin No. Size Power Supply Voltage Cat. No.
900-CONV7
30 mm (W) x 80 mm (H) x 78 mm (D)
100…240V AC
900-CONVZ25
24V AC/DC 900-CONVU25
7 Converts personal computer RS-232/USB communications to RS-485. Use for interface with a single Bulletin 900-TCx, or multiple (up to 31) controllers 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
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