PR821-CH User Manual.doc
2018-04-05
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3.10 Installation guidelines
Install devices in such way as to ensure easy access to screw terminals and jumpers (RST, FDM)
located inside the controller – see fig. 5.
Prior to controller installation it is recommended to configure its address (ID number) – see 4.1
Controller address. Factory default address is ID=00.
All electric connections must be made with power supply switched off.
All devices connected to the same communication bus (RS485 and RACS CLKD/DTA) should be
connected to the same negative potential (GND). Therefore all GND terminals from various
power supply units used in the system should be connected with each other.
General purpose diode e.g. 1N4007 should be always connected in parallel and as close as
possible to the door locking device (magnetic lock, electric strike, relay, contactor).
It is required to install readers in minimal distance of 0.5m from each other. If two readers have
to be installed on opposite sides of the same wall, it is recommended not to place them directly
opposite (in the same axis). If this condition cannot be fulfilled then place metal plate between
reader and wall as well as non-metal spacer with 10mm minimal thickness between reader and
metal plate.
Because of relatively low magnetic field readers should not interfere with other devices,
however its operation can be disrupted by devices generating strong electromagnetic field.
If the range of card reading is significantly lower than specified in technical documentation then
consider relocation of the reader.
Readers can be installed on metal surfaces but in such case reduction of reading distance
should be expected. The reading distance reduction effect can be minimized by installing
readers on non-metal spacer with minimal thickness of 10 mm (e.g. PVC).
4.
C
ONFIGURATION
4.1 Controller address
If controller works autonomously (standalone mode), then address setting can be skipped and
default address ID =00 can be used but if the controller is to be connected with other controllers by
means of RS485 bus and operate in network system, then it is necessary to assign unique address
to such controller (ID number from range 00..99). Two or more devices with the same address
result in communication conflict and make a proper communication with these devices impossible.
Following addressing methods are available:
During update of controller firmware by means of RogerISP software (so called Fixed ID)
Manually during Memory Reset procedure
By means of PR Master software
The first method enables configuration of hardware address while the remaining ones enable
configuration of software addresses. The main difference between these two addressing methods is
such that software address contrary to hardware address can be modified using any of mentioned
methods. Therefore Fixed ID has the highest priority and the other methods have lower priority.
Note: A new controller can be connected to the existing system without the necessity to change its
address but only if no other controller operates with default address ID=00. Once the controller is
connected to the RS485 communication bus, it should be detected by means of PR Master software
and new address should be configured.
4.1.1 Addressing during firmware update (Fixed ID)
FixedID can be set during update of the controller firmware by means of RogerISP software. Prior
to firmware upload, RogerISP software offers the possibility to set Fixed ID address in range of
00..99 or disable it (FixedID=None). Once the FixedID is selected and uploaded to the controller
software addressing is ignored. In order to disable or modify FixedID it is necessary to start
firmware upload procedure.
Note: When FixedID is configured then controller address cannot be modified based on software
addressing method. FixedID address is maintained even in case of controller configuration error.
