A.2.4 Modbus - Siemens SITRANS F FST020 IP65 NEMA 4X Instrucciones De Servicio

⃞ BACnet/IP Broadcast Management Device
(BBMD)
Network Security Options:
⃞ Non-secure Device - is capable of operating without BACnet Network Security
⃞ Secure Device - is capable of using BACnet Network Security (NS-SD BIBB)
⃞ Multiple Application-Specific Keys:
⃞ Supports encryption (NS-ED BIBB)
⃞ Key Server (NS-KS BIBB)
Character Sets Supported:
Indicating support for multiple character sets does not imply that they can all be supported
simultaneously.
⃞ ISO 10646 (UTF-8) ⃞ IBM™ / Microsoft™ DBCS ⃞ ISO 8859-1
⃞ ISO 10646 (UCS-2) ⃞ ISO 10646 (UCS-4) ⃞ JIS X 0208 ☑ ANSI X3.4
If this product is a communication gateway, describe the types of non-BACnet
equipment/networks(s) that the gateway supports:
This product is not a communications gateway.
A.2.4 ModBus
ModBus is an open protocol that has been in existence since 1980 and has become a de
facto standard for communication in supervisory and data acquisition applications. It uses
registers to address data which can be formatted in various types including, REAL,
INTEGER, & BOOL (coils).
The following ModBus Function Codes are supported:
1
2
3
4
5
6
15 FORCE MULTIPLE COILS
16 PRESET MULTIPLE REGISTERS WriteRegister()
Alarm Status Input Register (Read Only)
Alarm Status
FST020 IP65 NEMA 4X Quick Start
Operating Instructions, 08/2014, A5E03086489-AJ
READ COIL
READ INPUT STATUS
READ HOLDING REGISTER(S)
READ INPUT REGISTER(S)
FORCE SINGLE COIL
PRESET SINGLE REGISTER
Description Address
295
ReadCoil()
ReadCoil()
ReadRegister()
ReadRegister()
WriteCoil()
WriteRegister()
WriteCoil()
Register Type
3xxxx Input Register
A.2 BACnet/ModBus Communications
Bytes Data Type
16 STRING
Appendix
Example
__ERF____
49