Communication Ports; Serial Ports - Carel pCO5+ User Manual

3.1 Serial ports

Compared to the pCO3, pCO5+ (and pCO5) controllers have a second
BMS serial port on connector J25 (BMS2) and a second Fieldbus port
on connector J26 (FBus2). pCO5+ Large and Extralarge boards still have
connector J23, which is marked FBus2 like connector J26. With reference
to management under 1Tool, this is the same serial line, so diff erent
addresses must be used for devices connected to both connectors,
while from the electrical point of view the ports are independent (an
electrical fault on port J26 does not aff ect port J23). See the "Technical
Specifi cations" table.
J11 pLAN
J10
J1 J24
Serial Type/Connector
Serial ZERO pLAN/J10, J11
Serial ONE BMS 1 Serial Card
Serial TWO FieldBus 1 Serial Card
Serial THREE BMS 2 / J25
Serial FOUR FieldBus 2 / J26
(and J23 on Large and
Extralarge versions)

3. COMMUNICATION PORTS

J12
J25 BMS2 J26 FBus2
FieldBus card B M S card
J4
J2 J3
Fig. 3.a
Features
• Built into main board
• HW driver: asynchronous half duplex RS485 pLAN
• Not optically isolated
• Connectors: telephone jack + 3-pin plug-in connector
• Not built into main board
• HW driver: not present
• Can be used with all the BMS expansion cards of the pCO family
• Not built into main board
• HW driver: not present
• Can be used with all Fieldbus expansion cards of the pCO family
• Built into main board
• HW driver: asynchronous half duplex RS485 slave
• Optically-isolated/non-optically-isolated serial
• 3-pin plug-in connector
• Built into main board
• HW driver: asynchronous half duplex RS485 Master or Slave (see par. 3.2)
• J23: not optically isolated
• J26: optically isolated/not optically isolated
• 3-pin plug-in connector
• J23 and J26 are both managed by the same protocol as serial 4, with the advantage of being electrically
independent.
J15
J13 J14
4 3 2 1
J21
ONLY FOR
LARGE AND EXTRALARGE
MODELS
J19
J5
J6
13
J18
J16 J17
J22
J23 FBus2
J20
J7
J8
pCO5plus +0300020EN rel. 1.2 - 07.11.2013
ENG
Tab. 3.a