Rockwell Automation 1785-Lxxx Enhanced and Ethernet PLC-5 Programmable Controllers - Manual (Page 270)

Publication 1785-UM012D-EN-P - July 2005
A-2 System Specifications
Memory and Channel Specifications
Controller/
Cat. No.
Maximum
User Memory
Words Total I/O Maximum
(Any Mix)
Types of Communication Ports Maximum
Number of
I/O Racks
(Rack
Addresses)
Maximum Number of I/O
Chassis
PLC-5/11
(1785-L11B)
8 K 512 (any mix) or
384 in + 384 out
(complementary)
1 DH+/Remote I/O (Adapter or
Scanner)
1 serial port, configurable for
RS-232 and 423 and RS-422A
compatible
4 (0-3) Total Ext Local Remote
5 0 4
(must be
rack 3)
PLC-5/20
(1785-L20B)
PLC-5/26
(1785-L26B)
16K 512 (any mix) or
512 in + 512 out
(complementary)
1 DH+ (Fixed)
1 DH+/Remote I/O (Adapter or
Scanner)
1 serial port, configurable for
RS-232 and 423 and RS-422A
compatible
4 (0-3) 13 0 12
PLC-5/20E
(1785-L20E)
16K 512 (any mix) or
512 in + 512 out
(complementary)
1 DH+ (Fixed)
1 DH+/Remote I/O (Adapter or
Scanner)
1 serial port, configurable for
RS-232 and 423 and RS-422A
compatible
1 channel Ethernet only
4 (0-3) 13 0 12
PLC-5/30
(1785-L30B)
32 K 1024 (any mix) or
1024 in and 1024 out
(complementary)
2 DH+/Remote I/O (Adapter or
Scanner)
1 serial port, configurable for
RS-232 and 423 and RS-422A
compatible
8 (0-7) 29 0 28
PLC-5/40
(1785-L40B)
PLC-5/46
(1785-L46B)
48 K
(1) 2048 (any mix) or
2048 in + 2048 out
(complementary)
4 DH+/Remote I/O (Adapter or
Scanner)
1 serial port, configurable for
RS-232 and 423 and RS-422A
compatible
16 (0-17) 61 0 60
PLC-5/40E
(1785-L40E)
48 K
1 2048 (any mix) or
2048 in + 2048 out
(complementary)
2 DH+/Remote I/O (Adapter or
Scanner)
1 channel Ethernet only
1 serial port, configurable for
RS-232 and 423 and RS-422A
compatible
16 (0-17) 61 0 60
PLC-5/40L
(1785-L40L)
48 K
1 2048 (any mix) or
2048 in + 2048 out
(complementary)
2 DH+/Remote I/O (Adapter or
Scanner)
1 serial port, configurable for
RS-232 and 423 and RS-422A
compatible
1 Extended-Local I/O
16 (0-17) 61 16 60