Operating Instructions

Chapter 2—Hardware Features
Communication Connections
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Siemens Industry, Inc.
Owner's Manual
588-781
Building Technologies
2018-10-01
Communication Drivers to Non-Siemens Networks
As an option, the TC Modular can communicate to related building system controllers,
such as boilers, chillers, rooftop units, Programmable Logic Controllers (PLCs), power
meters, lighting panels, fire alarm and life safety systems, and access control systems.
Modular Series Specifications
Dimensions (L × W × D)
TC Modular 7.56" × 3.54" × 2.76"(192 mm × 90 mm × 70 mm)
FLN Expansion Module
1.26" × 3.54" × 2.76"
(32 mm × 90 mm × 70 mm)
DIN rail (EN 60715 TH 35-7.5, steel)
1.38" × 0.30" × 0.04"
(35 mm × 7.5 mm × 1 mm)
Processor, Battery, and Memory
Processor MPC885 (PowerPC )
Processor Clock Speed 133 MHz
Memory 80 MB (64 MB SDRAM, 16 MB Flash ROM)
Serial EEPROM 4 KB
Secure Digital (SD) memory card (for future
use)
Expandable or removable non-volatile memory
Battery backup of SDRAM 30 days (accumulated), AA (LR6) 1.5 Volt Alkaline (non-rechargeable)
Battery backup of Real Time Clock 12 months (accumulated), Coin cell (BR2032) 3 Volt lithium
Real Time Clock Initial Accuracy ±30 seconds/month typical @ 77°F (25°C)
Communication
BACnet/IP and Web Services Automation
Level Network (ALN)
10Base-T or 100Base-TX compliant
BACnet MS/TP Automation Level Network
(ALN)
RS-485, 9600 bps to 115.2 Kbps
BACnet MS/TP Field Level Network (FLN) RS-485, 9600 bps to 76.8 Kbps
TX-I/O self-forming bus connection 115.2 Kbps, 5 pin connector (middle pin is not connected)
Human-Machine Interface (HMI) Advanced
User Mode
RS-232 compliant, 1200 bps to 115.2 Kbps
USB Device port (for non-smoke control
applications only)
Standard 1.1 and 2.0 USB device port, Type B female connector
USB Host port on selected models (for
ancillary smoke control applications only).
Standard 1.1 and 2.0 USB host port, Type A female connector
Factory-set HMI Communication Speed: 115.2 Kbps.